Home / 47,729.82-71,589.17-12,672.20

Finding the Fourth Proportional to 47,729.82, 71,589.17 and 12,672.20

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Solution

The fourth proportional to 47,729.82, 71,589.17 and 12,672.20 is: 19,006.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,729.82 : 71,589.17 = 12,672.20 : x
  2. Step 2: Convert to fraction form
    47,729.82/71,589.17 = 12,672.20/x
  3. Step 3: Cross multiply
    47,729.82x = 71,589.17 × 12,672.20
  4. Step 4: Simplify right side
    47,729.82x = 907,192,280.07
  5. Step 5: Solve for x
    x = 907,192,280.07/47,729.82
  6. Step 6: Final answer
    x = 19,006.82

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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.