Home / 27,687.42-41,531.22-7,961.40

Finding the Fourth Proportional to 27,687.42, 41,531.22 and 7,961.40

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Solution

The fourth proportional to 27,687.42, 41,531.22 and 7,961.40 is: 11,942.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,687.42 : 41,531.22 = 7,961.40 : x
  2. Step 2: Convert to fraction form
    27,687.42/41,531.22 = 7,961.40/x
  3. Step 3: Cross multiply
    27,687.42x = 41,531.22 × 7,961.40
  4. Step 4: Simplify right side
    27,687.42x = 330,646,654.91
  5. Step 5: Solve for x
    x = 330,646,654.91/27,687.42
  6. Step 6: Final answer
    x = 11,942.13

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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.