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Finding the Fourth Proportional to 25,539, 38,321.46 and 11,691.48

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Solution

The fourth proportional to 25,539, 38,321.46 and 11,691.48 is: 17,543.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,539 : 38,321.46 = 11,691.48 : x
  2. Step 2: Convert to fraction form
    25,539/38,321.46 = 11,691.48/x
  3. Step 3: Cross multiply
    25,539x = 38,321.46 × 11,691.48
  4. Step 4: Simplify right side
    25,539x = 448,034,583.16
  5. Step 5: Solve for x
    x = 448,034,583.16/25,539
  6. Step 6: Final answer
    x = 17,543.15

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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.