Home / 27,845.20-41,769.40-8,126.80

Finding the Fourth Proportional to 27,845.20, 41,769.40 and 8,126.80

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Solution

The fourth proportional to 27,845.20, 41,769.40 and 8,126.80 is: 12,190.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,845.20 : 41,769.40 = 8,126.80 : x
  2. Step 2: Convert to fraction form
    27,845.20/41,769.40 = 8,126.80/x
  3. Step 3: Cross multiply
    27,845.20x = 41,769.40 × 8,126.80
  4. Step 4: Simplify right side
    27,845.20x = 339,451,559.92
  5. Step 5: Solve for x
    x = 339,451,559.92/27,845.20
  6. Step 6: Final answer
    x = 12,190.67

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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.