Home / 31,424.56-47,135.24-8,049.60

Finding the Fourth Proportional to 31,424.56, 47,135.24 and 8,049.60

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Solution

The fourth proportional to 31,424.56, 47,135.24 and 8,049.60 is: 12,073.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,424.56 : 47,135.24 = 8,049.60 : x
  2. Step 2: Convert to fraction form
    31,424.56/47,135.24 = 8,049.60/x
  3. Step 3: Cross multiply
    31,424.56x = 47,135.24 × 8,049.60
  4. Step 4: Simplify right side
    31,424.56x = 379,419,827.90
  5. Step 5: Solve for x
    x = 379,419,827.90/31,424.56
  6. Step 6: Final answer
    x = 12,073.99

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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.