Home / 40,020.82-55,232.30-22,115.68

Finding the Fourth Proportional to 40,020.82, 55,232.30 and 22,115.68

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Solution

The fourth proportional to 40,020.82, 55,232.30 and 22,115.68 is: 30,521.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,020.82 : 55,232.30 = 22,115.68 : x
  2. Step 2: Convert to fraction form
    40,020.82/55,232.30 = 22,115.68/x
  3. Step 3: Cross multiply
    40,020.82x = 55,232.30 × 22,115.68
  4. Step 4: Simplify right side
    40,020.82x = 1,221,499,872.46
  5. Step 5: Solve for x
    x = 1,221,499,872.46/40,020.82
  6. Step 6: Final answer
    x = 30,521.61

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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.