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Finding the Fourth Proportional to 39,472, 59,237.16 and 18,695.50

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Solution

The fourth proportional to 39,472, 59,237.16 and 18,695.50 is: 28,057.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,472 : 59,237.16 = 18,695.50 : x
  2. Step 2: Convert to fraction form
    39,472/59,237.16 = 18,695.50/x
  3. Step 3: Cross multiply
    39,472x = 59,237.16 × 18,695.50
  4. Step 4: Simplify right side
    39,472x = 1,107,468,324.78
  5. Step 5: Solve for x
    x = 1,107,468,324.78/39,472
  6. Step 6: Final answer
    x = 28,057.06

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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.