Home / 39,295.73-54,229.32-21,391.92

Finding the Fourth Proportional to 39,295.73, 54,229.32 and 21,391.92

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Solution

The fourth proportional to 39,295.73, 54,229.32 and 21,391.92 is: 29,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,295.73 : 54,229.32 = 21,391.92 : x
  2. Step 2: Convert to fraction form
    39,295.73/54,229.32 = 21,391.92/x
  3. Step 3: Cross multiply
    39,295.73x = 54,229.32 × 21,391.92
  4. Step 4: Simplify right side
    39,295.73x = 1,160,069,275.09
  5. Step 5: Solve for x
    x = 1,160,069,275.09/39,295.73
  6. Step 6: Final answer
    x = 29,521.51

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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.