Home / 39,631.16-54,691.05-21,726.82

Finding the Fourth Proportional to 39,631.16, 54,691.05 and 21,726.82

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Solution

The fourth proportional to 39,631.16, 54,691.05 and 21,726.82 is: 29,983.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631.16 : 54,691.05 = 21,726.82 : x
  2. Step 2: Convert to fraction form
    39,631.16/54,691.05 = 21,726.82/x
  3. Step 3: Cross multiply
    39,631.16x = 54,691.05 × 21,726.82
  4. Step 4: Simplify right side
    39,631.16x = 1,188,262,598.96
  5. Step 5: Solve for x
    x = 1,188,262,598.96/39,631.16
  6. Step 6: Final answer
    x = 29,983.04

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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.