Home / 31,799.22-43,881.39-18,370.86

Finding the Fourth Proportional to 31,799.22, 43,881.39 and 18,370.86

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Solution

The fourth proportional to 31,799.22, 43,881.39 and 18,370.86 is: 25,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,799.22 : 43,881.39 = 18,370.86 : x
  2. Step 2: Convert to fraction form
    31,799.22/43,881.39 = 18,370.86/x
  3. Step 3: Cross multiply
    31,799.22x = 43,881.39 × 18,370.86
  4. Step 4: Simplify right side
    31,799.22x = 806,138,872.30
  5. Step 5: Solve for x
    x = 806,138,872.30/31,799.22
  6. Step 6: Final answer
    x = 25,350.90

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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.