Home / 40,142.99-55,396.10-22,237.61

Finding the Fourth Proportional to 40,142.99, 55,396.10 and 22,237.61

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Solution

The fourth proportional to 40,142.99, 55,396.10 and 22,237.61 is: 30,687.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,142.99 : 55,396.10 = 22,237.61 : x
  2. Step 2: Convert to fraction form
    40,142.99/55,396.10 = 22,237.61/x
  3. Step 3: Cross multiply
    40,142.99x = 55,396.10 × 22,237.61
  4. Step 4: Simplify right side
    40,142.99x = 1,231,876,645.93
  5. Step 5: Solve for x
    x = 1,231,876,645.93/40,142.99
  6. Step 6: Final answer
    x = 30,687.22

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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.