Home / 39,654.14-54,724.24-21,749.90

Finding the Fourth Proportional to 39,654.14, 54,724.24 and 21,749.90

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Solution

The fourth proportional to 39,654.14, 54,724.24 and 21,749.90 is: 30,015.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,654.14 : 54,724.24 = 21,749.90 : x
  2. Step 2: Convert to fraction form
    39,654.14/54,724.24 = 21,749.90/x
  3. Step 3: Cross multiply
    39,654.14x = 54,724.24 × 21,749.90
  4. Step 4: Simplify right side
    39,654.14x = 1,190,246,473.95
  5. Step 5: Solve for x
    x = 1,190,246,473.95/39,654.14
  6. Step 6: Final answer
    x = 30,015.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.