Home / 27,131.78-37,454.82-18,072.21

Finding the Fourth Proportional to 27,131.78, 37,454.82 and 18,072.21

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Solution

The fourth proportional to 27,131.78, 37,454.82 and 18,072.21 is: 24,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,131.78 : 37,454.82 = 18,072.21 : x
  2. Step 2: Convert to fraction form
    27,131.78/37,454.82 = 18,072.21/x
  3. Step 3: Cross multiply
    27,131.78x = 37,454.82 × 18,072.21
  4. Step 4: Simplify right side
    27,131.78x = 676,891,372.55
  5. Step 5: Solve for x
    x = 676,891,372.55/27,131.78
  6. Step 6: Final answer
    x = 24,948.29

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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.