Home / 47,720.23-71,562.09-15,691.84

Finding the Fourth Proportional to 47,720.23, 71,562.09 and 15,691.84

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Solution

The fourth proportional to 47,720.23, 71,562.09 and 15,691.84 is: 23,531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,720.23 : 71,562.09 = 15,691.84 : x
  2. Step 2: Convert to fraction form
    47,720.23/71,562.09 = 15,691.84/x
  3. Step 3: Cross multiply
    47,720.23x = 71,562.09 × 15,691.84
  4. Step 4: Simplify right side
    47,720.23x = 1,122,940,866.35
  5. Step 5: Solve for x
    x = 1,122,940,866.35/47,720.23
  6. Step 6: Final answer
    x = 23,531.76

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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.