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Finding the Fourth Proportional to 39,234, 58,876.92 and 18,459.12

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Solution

The fourth proportional to 39,234, 58,876.92 and 18,459.12 is: 27,700.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,234 : 58,876.92 = 18,459.12 : x
  2. Step 2: Convert to fraction form
    39,234/58,876.92 = 18,459.12/x
  3. Step 3: Cross multiply
    39,234x = 58,876.92 × 18,459.12
  4. Step 4: Simplify right side
    39,234x = 1,086,816,131.51
  5. Step 5: Solve for x
    x = 1,086,816,131.51/39,234
  6. Step 6: Final answer
    x = 27,700.88

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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.