Home / 31,426.20-47,139.24-8,052.60

Finding the Fourth Proportional to 31,426.20, 47,139.24 and 8,052.60

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Solution

The fourth proportional to 31,426.20, 47,139.24 and 8,052.60 is: 12,078.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.20 : 47,139.24 = 8,052.60 : x
  2. Step 2: Convert to fraction form
    31,426.20/47,139.24 = 8,052.60/x
  3. Step 3: Cross multiply
    31,426.20x = 47,139.24 × 8,052.60
  4. Step 4: Simplify right side
    31,426.20x = 379,593,444.02
  5. Step 5: Solve for x
    x = 379,593,444.02/31,426.20
  6. Step 6: Final answer
    x = 12,078.88

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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.