Home / 31,691.53-43,734.90-18,260.52

Finding the Fourth Proportional to 31,691.53, 43,734.90 and 18,260.52

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Solution

The fourth proportional to 31,691.53, 43,734.90 and 18,260.52 is: 25,199.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,691.53 : 43,734.90 = 18,260.52 : x
  2. Step 2: Convert to fraction form
    31,691.53/43,734.90 = 18,260.52/x
  3. Step 3: Cross multiply
    31,691.53x = 43,734.90 × 18,260.52
  4. Step 4: Simplify right side
    31,691.53x = 798,622,016.15
  5. Step 5: Solve for x
    x = 798,622,016.15/31,691.53
  6. Step 6: Final answer
    x = 25,199.86

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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.