Home / 28,829.43-39,739.14-21,251.48

Finding the Fourth Proportional to 28,829.43, 39,739.14 and 21,251.48

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Solution

The fourth proportional to 28,829.43, 39,739.14 and 21,251.48 is: 29,293.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.43 : 39,739.14 = 21,251.48 : x
  2. Step 2: Convert to fraction form
    28,829.43/39,739.14 = 21,251.48/x
  3. Step 3: Cross multiply
    28,829.43x = 39,739.14 × 21,251.48
  4. Step 4: Simplify right side
    28,829.43x = 844,515,340.23
  5. Step 5: Solve for x
    x = 844,515,340.23/28,829.43
  6. Step 6: Final answer
    x = 29,293.52

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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.