Home / 28,425.33-39,229.92-15,850.08

Finding the Fourth Proportional to 28,425.33, 39,229.92 and 15,850.08

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Solution

The fourth proportional to 28,425.33, 39,229.92 and 15,850.08 is: 21,874.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425.33 : 39,229.92 = 15,850.08 : x
  2. Step 2: Convert to fraction form
    28,425.33/39,229.92 = 15,850.08/x
  3. Step 3: Cross multiply
    28,425.33x = 39,229.92 × 15,850.08
  4. Step 4: Simplify right side
    28,425.33x = 621,797,370.39
  5. Step 5: Solve for x
    x = 621,797,370.39/28,425.33
  6. Step 6: Final answer
    x = 21,874.76

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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.