Home / 28,375.88-39,139.95-17,747.06

Finding the Fourth Proportional to 28,375.88, 39,139.95 and 17,747.06

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Solution

The fourth proportional to 28,375.88, 39,139.95 and 17,747.06 is: 24,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,375.88 : 39,139.95 = 17,747.06 : x
  2. Step 2: Convert to fraction form
    28,375.88/39,139.95 = 17,747.06/x
  3. Step 3: Cross multiply
    28,375.88x = 39,139.95 × 17,747.06
  4. Step 4: Simplify right side
    28,375.88x = 694,618,778.80
  5. Step 5: Solve for x
    x = 694,618,778.80/28,375.88
  6. Step 6: Final answer
    x = 24,479.20

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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.