Home / 31,920.43-44,042.85-18,302.17

Finding the Fourth Proportional to 31,920.43, 44,042.85 and 18,302.17

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Solution

The fourth proportional to 31,920.43, 44,042.85 and 18,302.17 is: 25,252.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,920.43 : 44,042.85 = 18,302.17 : x
  2. Step 2: Convert to fraction form
    31,920.43/44,042.85 = 18,302.17/x
  3. Step 3: Cross multiply
    31,920.43x = 44,042.85 × 18,302.17
  4. Step 4: Simplify right side
    31,920.43x = 806,079,727.98
  5. Step 5: Solve for x
    x = 806,079,727.98/31,920.43
  6. Step 6: Final answer
    x = 25,252.78

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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.