Home / 21,552.68-29,761.38-15,897.23

Finding the Fourth Proportional to 21,552.68, 29,761.38 and 15,897.23

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Solution

The fourth proportional to 21,552.68, 29,761.38 and 15,897.23 is: 21,951.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,552.68 : 29,761.38 = 15,897.23 : x
  2. Step 2: Convert to fraction form
    21,552.68/29,761.38 = 15,897.23/x
  3. Step 3: Cross multiply
    21,552.68x = 29,761.38 × 15,897.23
  4. Step 4: Simplify right side
    21,552.68x = 473,123,354.17
  5. Step 5: Solve for x
    x = 473,123,354.17/21,552.68
  6. Step 6: Final answer
    x = 21,951.96

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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.