Home / 31,362.18-43,279.92-17,215.80

Finding the Fourth Proportional to 31,362.18, 43,279.92 and 17,215.80

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Solution

The fourth proportional to 31,362.18, 43,279.92 and 17,215.80 is: 23,757.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,362.18 : 43,279.92 = 17,215.80 : x
  2. Step 2: Convert to fraction form
    31,362.18/43,279.92 = 17,215.80/x
  3. Step 3: Cross multiply
    31,362.18x = 43,279.92 × 17,215.80
  4. Step 4: Simplify right side
    31,362.18x = 745,098,446.74
  5. Step 5: Solve for x
    x = 745,098,446.74/31,362.18
  6. Step 6: Final answer
    x = 23,757.87

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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.