Home / 31,861.22-47,761.97-10,786.55

Finding the Fourth Proportional to 31,861.22, 47,761.97 and 10,786.55

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Solution

The fourth proportional to 31,861.22, 47,761.97 and 10,786.55 is: 16,169.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,861.22 : 47,761.97 = 10,786.55 : x
  2. Step 2: Convert to fraction form
    31,861.22/47,761.97 = 10,786.55/x
  3. Step 3: Cross multiply
    31,861.22x = 47,761.97 × 10,786.55
  4. Step 4: Simplify right side
    31,861.22x = 515,186,584.76
  5. Step 5: Solve for x
    x = 515,186,584.76/31,861.22
  6. Step 6: Final answer
    x = 16,169.71

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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.