Home / 39,631.92-54,691.58-21,726.92

Finding the Fourth Proportional to 39,631.92, 54,691.58 and 21,726.92

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Solution

The fourth proportional to 39,631.92, 54,691.58 and 21,726.92 is: 29,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631.92 : 54,691.58 = 21,726.92 : x
  2. Step 2: Convert to fraction form
    39,631.92/54,691.58 = 21,726.92/x
  3. Step 3: Cross multiply
    39,631.92x = 54,691.58 × 21,726.92
  4. Step 4: Simplify right side
    39,631.92x = 1,188,279,774.38
  5. Step 5: Solve for x
    x = 1,188,279,774.38/39,631.92
  6. Step 6: Final answer
    x = 29,982.90

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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.