Home / 40,142.20-55,396.16-22,237.16

Finding the Fourth Proportional to 40,142.20, 55,396.16 and 22,237.16

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Solution

The fourth proportional to 40,142.20, 55,396.16 and 22,237.16 is: 30,687.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,142.20 : 55,396.16 = 22,237.16 : x
  2. Step 2: Convert to fraction form
    40,142.20/55,396.16 = 22,237.16/x
  3. Step 3: Cross multiply
    40,142.20x = 55,396.16 × 22,237.16
  4. Step 4: Simplify right side
    40,142.20x = 1,231,853,273.31
  5. Step 5: Solve for x
    x = 1,231,853,273.31/40,142.20
  6. Step 6: Final answer
    x = 30,687.24

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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.