Home / 20,245.38-27,941.06-11,861.88

Finding the Fourth Proportional to 20,245.38, 27,941.06 and 11,861.88

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Solution

The fourth proportional to 20,245.38, 27,941.06 and 11,861.88 is: 16,370.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.38 : 27,941.06 = 11,861.88 : x
  2. Step 2: Convert to fraction form
    20,245.38/27,941.06 = 11,861.88/x
  3. Step 3: Cross multiply
    20,245.38x = 27,941.06 × 11,861.88
  4. Step 4: Simplify right side
    20,245.38x = 331,433,500.79
  5. Step 5: Solve for x
    x = 331,433,500.79/20,245.38
  6. Step 6: Final answer
    x = 16,370.82

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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.