Home / 25,514.82-38,278.31-7,986.02

Finding the Fourth Proportional to 25,514.82, 38,278.31 and 7,986.02

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Solution

The fourth proportional to 25,514.82, 38,278.31 and 7,986.02 is: 11,980.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,514.82 : 38,278.31 = 7,986.02 : x
  2. Step 2: Convert to fraction form
    25,514.82/38,278.31 = 7,986.02/x
  3. Step 3: Cross multiply
    25,514.82x = 38,278.31 × 7,986.02
  4. Step 4: Simplify right side
    25,514.82x = 305,691,117.90
  5. Step 5: Solve for x
    x = 305,691,117.90/25,514.82
  6. Step 6: Final answer
    x = 11,980.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.