Home / 27,861.28-41,781.40-11,215.64

Finding the Fourth Proportional to 27,861.28, 41,781.40 and 11,215.64

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Solution

The fourth proportional to 27,861.28, 41,781.40 and 11,215.64 is: 16,819.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,861.28 : 41,781.40 = 11,215.64 : x
  2. Step 2: Convert to fraction form
    27,861.28/41,781.40 = 11,215.64/x
  3. Step 3: Cross multiply
    27,861.28x = 41,781.40 × 11,215.64
  4. Step 4: Simplify right side
    27,861.28x = 468,605,141.10
  5. Step 5: Solve for x
    x = 468,605,141.10/27,861.28
  6. Step 6: Final answer
    x = 16,819.23

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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.