Home / 47,491.12-71,236.68-12,433.78

Finding the Fourth Proportional to 47,491.12, 71,236.68 and 12,433.78

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Solution

The fourth proportional to 47,491.12, 71,236.68 and 12,433.78 is: 18,650.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,491.12 : 71,236.68 = 12,433.78 : x
  2. Step 2: Convert to fraction form
    47,491.12/71,236.68 = 12,433.78/x
  3. Step 3: Cross multiply
    47,491.12x = 71,236.68 × 12,433.78
  4. Step 4: Simplify right side
    47,491.12x = 885,741,207.05
  5. Step 5: Solve for x
    x = 885,741,207.05/47,491.12
  6. Step 6: Final answer
    x = 18,650.67

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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.