Home / 39,691.62-54,772.56-21,541.93

Finding the Fourth Proportional to 39,691.62, 54,772.56 and 21,541.93

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Solution

The fourth proportional to 39,691.62, 54,772.56 and 21,541.93 is: 29,726.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,691.62 : 54,772.56 = 21,541.93 : x
  2. Step 2: Convert to fraction form
    39,691.62/54,772.56 = 21,541.93/x
  3. Step 3: Cross multiply
    39,691.62x = 54,772.56 × 21,541.93
  4. Step 4: Simplify right side
    39,691.62x = 1,179,906,594.24
  5. Step 5: Solve for x
    x = 1,179,906,594.24/39,691.62
  6. Step 6: Final answer
    x = 29,726.85

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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.