Home / 40,177.50-55,443.42-22,272.78

Finding the Fourth Proportional to 40,177.50, 55,443.42 and 22,272.78

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Solution

The fourth proportional to 40,177.50, 55,443.42 and 22,272.78 is: 30,735.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,177.50 : 55,443.42 = 22,272.78 : x
  2. Step 2: Convert to fraction form
    40,177.50/55,443.42 = 22,272.78/x
  3. Step 3: Cross multiply
    40,177.50x = 55,443.42 × 22,272.78
  4. Step 4: Simplify right side
    40,177.50x = 1,234,879,096.11
  5. Step 5: Solve for x
    x = 1,234,879,096.11/40,177.50
  6. Step 6: Final answer
    x = 30,735.59

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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.