Home / 31,591.64-47,387.52-8,218.04

Finding the Fourth Proportional to 31,591.64, 47,387.52 and 8,218.04

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Solution

The fourth proportional to 31,591.64, 47,387.52 and 8,218.04 is: 12,327.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,591.64 : 47,387.52 = 8,218.04 : x
  2. Step 2: Convert to fraction form
    31,591.64/47,387.52 = 8,218.04/x
  3. Step 3: Cross multiply
    31,591.64x = 47,387.52 × 8,218.04
  4. Step 4: Simplify right side
    31,591.64x = 389,432,534.86
  5. Step 5: Solve for x
    x = 389,432,534.86/31,591.64
  6. Step 6: Final answer
    x = 12,327.08

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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.