Home / 39,634.14-54,693.93-21,728.54

Finding the Fourth Proportional to 39,634.14, 54,693.93 and 21,728.54

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Solution

The fourth proportional to 39,634.14, 54,693.93 and 21,728.54 is: 29,984.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,634.14 : 54,693.93 = 21,728.54 : x
  2. Step 2: Convert to fraction form
    39,634.14/54,693.93 = 21,728.54/x
  3. Step 3: Cross multiply
    39,634.14x = 54,693.93 × 21,728.54
  4. Step 4: Simplify right side
    39,634.14x = 1,188,419,156.33
  5. Step 5: Solve for x
    x = 1,188,419,156.33/39,634.14
  6. Step 6: Final answer
    x = 29,984.73

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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.