Home / 40,127.31-55,375.00-22,221.93

Finding the Fourth Proportional to 40,127.31, 55,375.00 and 22,221.93

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Solution

The fourth proportional to 40,127.31, 55,375.00 and 22,221.93 is: 30,665.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,127.31 : 55,375.00 = 22,221.93 : x
  2. Step 2: Convert to fraction form
    40,127.31/55,375.00 = 22,221.93/x
  3. Step 3: Cross multiply
    40,127.31x = 55,375.00 × 22,221.93
  4. Step 4: Simplify right side
    40,127.31x = 1,230,539,525.85
  5. Step 5: Solve for x
    x = 1,230,539,525.85/40,127.31
  6. Step 6: Final answer
    x = 30,665.89

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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.