Home / 31,909.14-47,863.89-11,132.64

Finding the Fourth Proportional to 31,909.14, 47,863.89 and 11,132.64

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Solution

The fourth proportional to 31,909.14, 47,863.89 and 11,132.64 is: 16,699.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,909.14 : 47,863.89 = 11,132.64 : x
  2. Step 2: Convert to fraction form
    31,909.14/47,863.89 = 11,132.64/x
  3. Step 3: Cross multiply
    31,909.14x = 47,863.89 × 11,132.64
  4. Step 4: Simplify right side
    31,909.14x = 532,851,456.37
  5. Step 5: Solve for x
    x = 532,851,456.37/31,909.14
  6. Step 6: Final answer
    x = 16,699.02

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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.