Home / 31,260.06-43,132.21-18,517.27

Finding the Fourth Proportional to 31,260.06, 43,132.21 and 18,517.27

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Solution

The fourth proportional to 31,260.06, 43,132.21 and 18,517.27 is: 25,549.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,260.06 : 43,132.21 = 18,517.27 : x
  2. Step 2: Convert to fraction form
    31,260.06/43,132.21 = 18,517.27/x
  3. Step 3: Cross multiply
    31,260.06x = 43,132.21 × 18,517.27
  4. Step 4: Simplify right side
    31,260.06x = 798,690,778.27
  5. Step 5: Solve for x
    x = 798,690,778.27/31,260.06
  6. Step 6: Final answer
    x = 25,549.88

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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.