Home / 31,733.79-43,781.90-18,304.71

Finding the Fourth Proportional to 31,733.79, 43,781.90 and 18,304.71

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Solution

The fourth proportional to 31,733.79, 43,781.90 and 18,304.71 is: 25,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,733.79 : 43,781.90 = 18,304.71 : x
  2. Step 2: Convert to fraction form
    31,733.79/43,781.90 = 18,304.71/x
  3. Step 3: Cross multiply
    31,733.79x = 43,781.90 × 18,304.71
  4. Step 4: Simplify right side
    31,733.79x = 801,414,982.75
  5. Step 5: Solve for x
    x = 801,414,982.75/31,733.79
  6. Step 6: Final answer
    x = 25,254.31

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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.