Home / 31,723.60-47,581.60-8,351.88

Finding the Fourth Proportional to 31,723.60, 47,581.60 and 8,351.88

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Solution

The fourth proportional to 31,723.60, 47,581.60 and 8,351.88 is: 12,526.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.60 : 47,581.60 = 8,351.88 : x
  2. Step 2: Convert to fraction form
    31,723.60/47,581.60 = 8,351.88/x
  3. Step 3: Cross multiply
    31,723.60x = 47,581.60 × 8,351.88
  4. Step 4: Simplify right side
    31,723.60x = 397,395,813.41
  5. Step 5: Solve for x
    x = 397,395,813.41/31,723.60
  6. Step 6: Final answer
    x = 12,526.82

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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.