Home / 40,086.18-55,318.68-22,180.86

Finding the Fourth Proportional to 40,086.18, 55,318.68 and 22,180.86

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Solution

The fourth proportional to 40,086.18, 55,318.68 and 22,180.86 is: 30,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,086.18 : 55,318.68 = 22,180.86 : x
  2. Step 2: Convert to fraction form
    40,086.18/55,318.68 = 22,180.86/x
  3. Step 3: Cross multiply
    40,086.18x = 55,318.68 × 22,180.86
  4. Step 4: Simplify right side
    40,086.18x = 1,227,015,896.46
  5. Step 5: Solve for x
    x = 1,227,015,896.46/40,086.18
  6. Step 6: Final answer
    x = 30,609.45

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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.