Home / 40,139.73-55,394.40-22,234.38

Finding the Fourth Proportional to 40,139.73, 55,394.40 and 22,234.38

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Solution

The fourth proportional to 40,139.73, 55,394.40 and 22,234.38 is: 30,684.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.73 : 55,394.40 = 22,234.38 : x
  2. Step 2: Convert to fraction form
    40,139.73/55,394.40 = 22,234.38/x
  3. Step 3: Cross multiply
    40,139.73x = 55,394.40 × 22,234.38
  4. Step 4: Simplify right side
    40,139.73x = 1,231,660,139.47
  5. Step 5: Solve for x
    x = 1,231,660,139.47/40,139.73
  6. Step 6: Final answer
    x = 30,684.32

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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.