Home / 39,260.18-54,179.94-21,356.15

Finding the Fourth Proportional to 39,260.18, 54,179.94 and 21,356.15

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Solution

The fourth proportional to 39,260.18, 54,179.94 and 21,356.15 is: 29,471.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,260.18 : 54,179.94 = 21,356.15 : x
  2. Step 2: Convert to fraction form
    39,260.18/54,179.94 = 21,356.15/x
  3. Step 3: Cross multiply
    39,260.18x = 54,179.94 × 21,356.15
  4. Step 4: Simplify right side
    39,260.18x = 1,157,074,654.73
  5. Step 5: Solve for x
    x = 1,157,074,654.73/39,260.18
  6. Step 6: Final answer
    x = 29,471.97

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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.