Home / 28,514.24-39,350-15,939.20

Finding the Fourth Proportional to 28,514.24, 39,350 and 15,939.20

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Solution

The fourth proportional to 28,514.24, 39,350 and 15,939.20 is: 21,996.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.24 : 39,350 = 15,939.20 : x
  2. Step 2: Convert to fraction form
    28,514.24/39,350 = 15,939.20/x
  3. Step 3: Cross multiply
    28,514.24x = 39,350 × 15,939.20
  4. Step 4: Simplify right side
    28,514.24x = 627,207,520
  5. Step 5: Solve for x
    x = 627,207,520/28,514.24
  6. Step 6: Final answer
    x = 21,996.29

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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.