Home / 31,414.20-47,129.50-16,422.32

Finding the Fourth Proportional to 31,414.20, 47,129.50 and 16,422.32

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Solution

The fourth proportional to 31,414.20, 47,129.50 and 16,422.32 is: 24,637.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,414.20 : 47,129.50 = 16,422.32 : x
  2. Step 2: Convert to fraction form
    31,414.20/47,129.50 = 16,422.32/x
  3. Step 3: Cross multiply
    31,414.20x = 47,129.50 × 16,422.32
  4. Step 4: Simplify right side
    31,414.20x = 773,975,515.32
  5. Step 5: Solve for x
    x = 773,975,515.32/31,414.20
  6. Step 6: Final answer
    x = 24,637.76

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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.