Home / 39,945.11-55,123.31-22,040.12

Finding the Fourth Proportional to 39,945.11, 55,123.31 and 22,040.12

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Solution

The fourth proportional to 39,945.11, 55,123.31 and 22,040.12 is: 30,414.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,945.11 : 55,123.31 = 22,040.12 : x
  2. Step 2: Convert to fraction form
    39,945.11/55,123.31 = 22,040.12/x
  3. Step 3: Cross multiply
    39,945.11x = 55,123.31 × 22,040.12
  4. Step 4: Simplify right side
    39,945.11x = 1,214,923,981.38
  5. Step 5: Solve for x
    x = 1,214,923,981.38/39,945.11
  6. Step 6: Final answer
    x = 30,414.84

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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.