Home / 28,514.24-39,348.48-15,766.61

Finding the Fourth Proportional to 28,514.24, 39,348.48 and 15,766.61

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Solution

The fourth proportional to 28,514.24, 39,348.48 and 15,766.61 is: 21,757.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.24 : 39,348.48 = 15,766.61 : x
  2. Step 2: Convert to fraction form
    28,514.24/39,348.48 = 15,766.61/x
  3. Step 3: Cross multiply
    28,514.24x = 39,348.48 × 15,766.61
  4. Step 4: Simplify right side
    28,514.24x = 620,392,138.25
  5. Step 5: Solve for x
    x = 620,392,138.25/28,514.24
  6. Step 6: Final answer
    x = 21,757.27

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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.