Home / 39,192.68-54,086.31-21,288.04

Finding the Fourth Proportional to 39,192.68, 54,086.31 and 21,288.04

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Solution

The fourth proportional to 39,192.68, 54,086.31 and 21,288.04 is: 29,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,192.68 : 54,086.31 = 21,288.04 : x
  2. Step 2: Convert to fraction form
    39,192.68/54,086.31 = 21,288.04/x
  3. Step 3: Cross multiply
    39,192.68x = 54,086.31 × 21,288.04
  4. Step 4: Simplify right side
    39,192.68x = 1,151,391,395.52
  5. Step 5: Solve for x
    x = 1,151,391,395.52/39,192.68
  6. Step 6: Final answer
    x = 29,377.71

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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.