Home / 40,170.32-55,433.86-22,020.66

Finding the Fourth Proportional to 40,170.32, 55,433.86 and 22,020.66

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Solution

The fourth proportional to 40,170.32, 55,433.86 and 22,020.66 is: 30,387.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,170.32 : 55,433.86 = 22,020.66 : x
  2. Step 2: Convert to fraction form
    40,170.32/55,433.86 = 22,020.66/x
  3. Step 3: Cross multiply
    40,170.32x = 55,433.86 × 22,020.66
  4. Step 4: Simplify right side
    40,170.32x = 1,220,690,183.55
  5. Step 5: Solve for x
    x = 1,220,690,183.55/40,170.32
  6. Step 6: Final answer
    x = 30,387.86

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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.