Home / 31,166.38-43,012.71-18,591.13

Finding the Fourth Proportional to 31,166.38, 43,012.71 and 18,591.13

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Solution

The fourth proportional to 31,166.38, 43,012.71 and 18,591.13 is: 25,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,166.38 : 43,012.71 = 18,591.13 : x
  2. Step 2: Convert to fraction form
    31,166.38/43,012.71 = 18,591.13/x
  3. Step 3: Cross multiply
    31,166.38x = 43,012.71 × 18,591.13
  4. Step 4: Simplify right side
    31,166.38x = 799,654,668.20
  5. Step 5: Solve for x
    x = 799,654,668.20/31,166.38
  6. Step 6: Final answer
    x = 25,657.61

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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.