Home / 22,275.92-30,729.84-15,191.12

Finding the Fourth Proportional to 22,275.92, 30,729.84 and 15,191.12

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Solution

The fourth proportional to 22,275.92, 30,729.84 and 15,191.12 is: 20,956.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,275.92 : 30,729.84 = 15,191.12 : x
  2. Step 2: Convert to fraction form
    22,275.92/30,729.84 = 15,191.12/x
  3. Step 3: Cross multiply
    22,275.92x = 30,729.84 × 15,191.12
  4. Step 4: Simplify right side
    22,275.92x = 466,820,687.02
  5. Step 5: Solve for x
    x = 466,820,687.02/22,275.92
  6. Step 6: Final answer
    x = 20,956.29

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.