Home / 31,711.10-47,562.88-8,339.36

Finding the Fourth Proportional to 31,711.10, 47,562.88 and 8,339.36

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Solution

The fourth proportional to 31,711.10, 47,562.88 and 8,339.36 is: 12,508.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,711.10 : 47,562.88 = 8,339.36 : x
  2. Step 2: Convert to fraction form
    31,711.10/47,562.88 = 8,339.36/x
  3. Step 3: Cross multiply
    31,711.10x = 47,562.88 × 8,339.36
  4. Step 4: Simplify right side
    31,711.10x = 396,643,978.96
  5. Step 5: Solve for x
    x = 396,643,978.96/31,711.10
  6. Step 6: Final answer
    x = 12,508.05

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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.