Home / 39,481.56-54,481.61-21,572.73

Finding the Fourth Proportional to 39,481.56, 54,481.61 and 21,572.73

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Solution

The fourth proportional to 39,481.56, 54,481.61 and 21,572.73 is: 29,768.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,481.56 : 54,481.61 = 21,572.73 : x
  2. Step 2: Convert to fraction form
    39,481.56/54,481.61 = 21,572.73/x
  3. Step 3: Cross multiply
    39,481.56x = 54,481.61 × 21,572.73
  4. Step 4: Simplify right side
    39,481.56x = 1,175,317,116.43
  5. Step 5: Solve for x
    x = 1,175,317,116.43/39,481.56
  6. Step 6: Final answer
    x = 29,768.76

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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.