Home / 47,691.91-71,539.23-12,631.56

Finding the Fourth Proportional to 47,691.91, 71,539.23 and 12,631.56

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Solution

The fourth proportional to 47,691.91, 71,539.23 and 12,631.56 is: 18,947.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,691.91 : 71,539.23 = 12,631.56 : x
  2. Step 2: Convert to fraction form
    47,691.91/71,539.23 = 12,631.56/x
  3. Step 3: Cross multiply
    47,691.91x = 71,539.23 × 12,631.56
  4. Step 4: Simplify right side
    47,691.91x = 903,652,223.37
  5. Step 5: Solve for x
    x = 903,652,223.37/47,691.91
  6. Step 6: Final answer
    x = 18,947.71

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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.