Home / 39,747.31-54,852.59-21,843.68

Finding the Fourth Proportional to 39,747.31, 54,852.59 and 21,843.68

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Solution

The fourth proportional to 39,747.31, 54,852.59 and 21,843.68 is: 30,144.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,747.31 : 54,852.59 = 21,843.68 : x
  2. Step 2: Convert to fraction form
    39,747.31/54,852.59 = 21,843.68/x
  3. Step 3: Cross multiply
    39,747.31x = 54,852.59 × 21,843.68
  4. Step 4: Simplify right side
    39,747.31x = 1,198,182,203.48
  5. Step 5: Solve for x
    x = 1,198,182,203.48/39,747.31
  6. Step 6: Final answer
    x = 30,144.99

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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.