Home / 31,425.80-43,367.76-17,279.55

Finding the Fourth Proportional to 31,425.80, 43,367.76 and 17,279.55

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Solution

The fourth proportional to 31,425.80, 43,367.76 and 17,279.55 is: 23,845.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,425.80 : 43,367.76 = 17,279.55 : x
  2. Step 2: Convert to fraction form
    31,425.80/43,367.76 = 17,279.55/x
  3. Step 3: Cross multiply
    31,425.80x = 43,367.76 × 17,279.55
  4. Step 4: Simplify right side
    31,425.80x = 749,375,377.31
  5. Step 5: Solve for x
    x = 749,375,377.31/31,425.80
  6. Step 6: Final answer
    x = 23,845.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.