Home / 27,932.30-41,912.10-13,142.68

Finding the Fourth Proportional to 27,932.30, 41,912.10 and 13,142.68

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Solution

The fourth proportional to 27,932.30, 41,912.10 and 13,142.68 is: 19,720.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,932.30 : 41,912.10 = 13,142.68 : x
  2. Step 2: Convert to fraction form
    27,932.30/41,912.10 = 13,142.68/x
  3. Step 3: Cross multiply
    27,932.30x = 41,912.10 × 13,142.68
  4. Step 4: Simplify right side
    27,932.30x = 550,837,318.43
  5. Step 5: Solve for x
    x = 550,837,318.43/27,932.30
  6. Step 6: Final answer
    x = 19,720.44

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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.