Home / 31,765.38-47,635.92-15,112.59

Finding the Fourth Proportional to 31,765.38, 47,635.92 and 15,112.59

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Solution

The fourth proportional to 31,765.38, 47,635.92 and 15,112.59 is: 22,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,765.38 : 47,635.92 = 15,112.59 : x
  2. Step 2: Convert to fraction form
    31,765.38/47,635.92 = 15,112.59/x
  3. Step 3: Cross multiply
    31,765.38x = 47,635.92 × 15,112.59
  4. Step 4: Simplify right side
    31,765.38x = 719,902,128.23
  5. Step 5: Solve for x
    x = 719,902,128.23/31,765.38
  6. Step 6: Final answer
    x = 22,663.10

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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.