Home / 27,515.21-41,286.87-13,105.82

Finding the Fourth Proportional to 27,515.21, 41,286.87 and 13,105.82

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Solution

The fourth proportional to 27,515.21, 41,286.87 and 13,105.82 is: 19,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,515.21 : 41,286.87 = 13,105.82 : x
  2. Step 2: Convert to fraction form
    27,515.21/41,286.87 = 13,105.82/x
  3. Step 3: Cross multiply
    27,515.21x = 41,286.87 × 13,105.82
  4. Step 4: Simplify right side
    27,515.21x = 541,098,080.15
  5. Step 5: Solve for x
    x = 541,098,080.15/27,515.21
  6. Step 6: Final answer
    x = 19,665.42

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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.