Home / 28,331.82-39,098.97-15,757.38

Finding the Fourth Proportional to 28,331.82, 39,098.97 and 15,757.38

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Solution

The fourth proportional to 28,331.82, 39,098.97 and 15,757.38 is: 21,745.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.82 : 39,098.97 = 15,757.38 : x
  2. Step 2: Convert to fraction form
    28,331.82/39,098.97 = 15,757.38/x
  3. Step 3: Cross multiply
    28,331.82x = 39,098.97 × 15,757.38
  4. Step 4: Simplify right side
    28,331.82x = 616,097,327.90
  5. Step 5: Solve for x
    x = 616,097,327.90/28,331.82
  6. Step 6: Final answer
    x = 21,745.77

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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.