Home / 27,912.12-41,861.70-8,185.38

Finding the Fourth Proportional to 27,912.12, 41,861.70 and 8,185.38

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Solution

The fourth proportional to 27,912.12, 41,861.70 and 8,185.38 is: 12,276.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,912.12 : 41,861.70 = 8,185.38 : x
  2. Step 2: Convert to fraction form
    27,912.12/41,861.70 = 8,185.38/x
  3. Step 3: Cross multiply
    27,912.12x = 41,861.70 × 8,185.38
  4. Step 4: Simplify right side
    27,912.12x = 342,653,921.95
  5. Step 5: Solve for x
    x = 342,653,921.95/27,912.12
  6. Step 6: Final answer
    x = 12,276.17

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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.