Home / 39,691.68-59,496.12-13,387.38

Finding the Fourth Proportional to 39,691.68, 59,496.12 and 13,387.38

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Solution

The fourth proportional to 39,691.68, 59,496.12 and 13,387.38 is: 20,067.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,691.68 : 59,496.12 = 13,387.38 : x
  2. Step 2: Convert to fraction form
    39,691.68/59,496.12 = 13,387.38/x
  3. Step 3: Cross multiply
    39,691.68x = 59,496.12 × 13,387.38
  4. Step 4: Simplify right side
    39,691.68x = 796,497,166.97
  5. Step 5: Solve for x
    x = 796,497,166.97/39,691.68
  6. Step 6: Final answer
    x = 20,067.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.