Example

Solving a Word Problem about the Recommended Daily Amount of Fiber in Cereal

Apply the seven-step problem-solving strategy to a percent application where the base (the whole amount) is the unknown.

Problem: One serving of wheat square cereal has 77 grams of fiber, which is 28%28\% of the recommended daily amount. What is the total recommended daily amount of fiber?

  1. Identify what to find: the total recommended daily amount of fiber.

  2. Name the unknown: Let ff = the total recommended daily amount of fiber.

  3. Translate into a percent sentence and an equation: "77 grams is 28%28\% of the total amount" translates to: 7=0.28Γ—f7 = 0.28 \times f

  4. Solve the equation by dividing both sides by the decimal coefficient 0.280.28: 70.28=f\frac{7}{0.28} = f

Evaluating the fraction yields: f=25f = 25

  1. Check: Calculate 28%28\% of 2525 to see if it equals 77. 0.28(25)=70.28(25) = 7 βœ“

  2. Answer: The total recommended daily amount of fiber is 2525 grams.

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Updated 2026-04-22

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