Home / 40,020.62-55,229.58-22,116.78

Finding the Fourth Proportional to 40,020.62, 55,229.58 and 22,116.78

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Solution

The fourth proportional to 40,020.62, 55,229.58 and 22,116.78 is: 30,521.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,020.62 : 55,229.58 = 22,116.78 : x
  2. Step 2: Convert to fraction form
    40,020.62/55,229.58 = 22,116.78/x
  3. Step 3: Cross multiply
    40,020.62x = 55,229.58 × 22,116.78
  4. Step 4: Simplify right side
    40,020.62x = 1,221,500,470.35
  5. Step 5: Solve for x
    x = 1,221,500,470.35/40,020.62
  6. Step 6: Final answer
    x = 30,521.78

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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.