Home / 21,545.28-29,732.52-12,591.14

Finding the Fourth Proportional to 21,545.28, 29,732.52 and 12,591.14

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Solution

The fourth proportional to 21,545.28, 29,732.52 and 12,591.14 is: 17,375.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,545.28 : 29,732.52 = 12,591.14 : x
  2. Step 2: Convert to fraction form
    21,545.28/29,732.52 = 12,591.14/x
  3. Step 3: Cross multiply
    21,545.28x = 29,732.52 × 12,591.14
  4. Step 4: Simplify right side
    21,545.28x = 374,366,173.21
  5. Step 5: Solve for x
    x = 374,366,173.21/21,545.28
  6. Step 6: Final answer
    x = 17,375.79

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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.