Home / 31,489.16-43,452.45-20,003.15

Finding the Fourth Proportional to 31,489.16, 43,452.45 and 20,003.15

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Solution

The fourth proportional to 31,489.16, 43,452.45 and 20,003.15 is: 27,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,489.16 : 43,452.45 = 20,003.15 : x
  2. Step 2: Convert to fraction form
    31,489.16/43,452.45 = 20,003.15/x
  3. Step 3: Cross multiply
    31,489.16x = 43,452.45 × 20,003.15
  4. Step 4: Simplify right side
    31,489.16x = 869,185,983.85
  5. Step 5: Solve for x
    x = 869,185,983.85/31,489.16
  6. Step 6: Final answer
    x = 27,602.71

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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.