Home / 39,440.38-54,427.92-21,535.48

Finding the Fourth Proportional to 39,440.38, 54,427.92 and 21,535.48

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Solution

The fourth proportional to 39,440.38, 54,427.92 and 21,535.48 is: 29,719.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,440.38 : 54,427.92 = 21,535.48 : x
  2. Step 2: Convert to fraction form
    39,440.38/54,427.92 = 21,535.48/x
  3. Step 3: Cross multiply
    39,440.38x = 54,427.92 × 21,535.48
  4. Step 4: Simplify right side
    39,440.38x = 1,172,131,382.60
  5. Step 5: Solve for x
    x = 1,172,131,382.60/39,440.38
  6. Step 6: Final answer
    x = 29,719.07

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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.