Home / 39,829.92-54,963-21,921.96

Finding the Fourth Proportional to 39,829.92, 54,963 and 21,921.96

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Solution

The fourth proportional to 39,829.92, 54,963 and 21,921.96 is: 30,251.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,829.92 : 54,963 = 21,921.96 : x
  2. Step 2: Convert to fraction form
    39,829.92/54,963 = 21,921.96/x
  3. Step 3: Cross multiply
    39,829.92x = 54,963 × 21,921.96
  4. Step 4: Simplify right side
    39,829.92x = 1,204,896,687.48
  5. Step 5: Solve for x
    x = 1,204,896,687.48/39,829.92
  6. Step 6: Final answer
    x = 30,251.04

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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.