Home / 27,861.92-41,782.96-8,135.36

Finding the Fourth Proportional to 27,861.92, 41,782.96 and 8,135.36

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Solution

The fourth proportional to 27,861.92, 41,782.96 and 8,135.36 is: 12,200.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,861.92 : 41,782.96 = 8,135.36 : x
  2. Step 2: Convert to fraction form
    27,861.92/41,782.96 = 8,135.36/x
  3. Step 3: Cross multiply
    27,861.92x = 41,782.96 × 8,135.36
  4. Step 4: Simplify right side
    27,861.92x = 339,919,421.47
  5. Step 5: Solve for x
    x = 339,919,421.47/27,861.92
  6. Step 6: Final answer
    x = 12,200.14

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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.