Home / 40,137.31-55,387.05-22,231.27

Finding the Fourth Proportional to 40,137.31, 55,387.05 and 22,231.27

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Solution

The fourth proportional to 40,137.31, 55,387.05 and 22,231.27 is: 30,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,137.31 : 55,387.05 = 22,231.27 : x
  2. Step 2: Convert to fraction form
    40,137.31/55,387.05 = 22,231.27/x
  3. Step 3: Cross multiply
    40,137.31x = 55,387.05 × 22,231.27
  4. Step 4: Simplify right side
    40,137.31x = 1,231,324,463.05
  5. Step 5: Solve for x
    x = 1,231,324,463.05/40,137.31
  6. Step 6: Final answer
    x = 30,677.80

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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.