Home / 20,046.20-27,659.82-11,431.16

Finding the Fourth Proportional to 20,046.20, 27,659.82 and 11,431.16

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Solution

The fourth proportional to 20,046.20, 27,659.82 and 11,431.16 is: 15,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,046.20 : 27,659.82 = 11,431.16 : x
  2. Step 2: Convert to fraction form
    20,046.20/27,659.82 = 11,431.16/x
  3. Step 3: Cross multiply
    20,046.20x = 27,659.82 × 11,431.16
  4. Step 4: Simplify right side
    20,046.20x = 316,183,827.99
  5. Step 5: Solve for x
    x = 316,183,827.99/20,046.20
  6. Step 6: Final answer
    x = 15,772.76

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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.