Home / 27,857.49-41,781.75-8,131.43

Finding the Fourth Proportional to 27,857.49, 41,781.75 and 8,131.43

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Solution

The fourth proportional to 27,857.49, 41,781.75 and 8,131.43 is: 12,195.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.49 : 41,781.75 = 8,131.43 : x
  2. Step 2: Convert to fraction form
    27,857.49/41,781.75 = 8,131.43/x
  3. Step 3: Cross multiply
    27,857.49x = 41,781.75 × 8,131.43
  4. Step 4: Simplify right side
    27,857.49x = 339,745,166.49
  5. Step 5: Solve for x
    x = 339,745,166.49/27,857.49
  6. Step 6: Final answer
    x = 12,195.83

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1.5x scale

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.