Home / 31,255.56-43,126.01-18,512.73

Finding the Fourth Proportional to 31,255.56, 43,126.01 and 18,512.73

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Solution

The fourth proportional to 31,255.56, 43,126.01 and 18,512.73 is: 25,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,255.56 : 43,126.01 = 18,512.73 : x
  2. Step 2: Convert to fraction form
    31,255.56/43,126.01 = 18,512.73/x
  3. Step 3: Cross multiply
    31,255.56x = 43,126.01 × 18,512.73
  4. Step 4: Simplify right side
    31,255.56x = 798,379,870.91
  5. Step 5: Solve for x
    x = 798,379,870.91/31,255.56
  6. Step 6: Final answer
    x = 25,543.62

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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.