Home / 16,713.92-23,006.76-15,139.28

Finding the Fourth Proportional to 16,713.92, 23,006.76 and 15,139.28

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Solution

The fourth proportional to 16,713.92, 23,006.76 and 15,139.28 is: 20,839.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,713.92 : 23,006.76 = 15,139.28 : x
  2. Step 2: Convert to fraction form
    16,713.92/23,006.76 = 15,139.28/x
  3. Step 3: Cross multiply
    16,713.92x = 23,006.76 × 15,139.28
  4. Step 4: Simplify right side
    16,713.92x = 348,305,781.53
  5. Step 5: Solve for x
    x = 348,305,781.53/16,713.92
  6. Step 6: Final answer
    x = 20,839.26

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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.