Home / 20,276.25-27,982.97-11,324.44

Finding the Fourth Proportional to 20,276.25, 27,982.97 and 11,324.44

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Solution

The fourth proportional to 20,276.25, 27,982.97 and 11,324.44 is: 15,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.25 : 27,982.97 = 11,324.44 : x
  2. Step 2: Convert to fraction form
    20,276.25/27,982.97 = 11,324.44/x
  3. Step 3: Cross multiply
    20,276.25x = 27,982.97 × 11,324.44
  4. Step 4: Simplify right side
    20,276.25x = 316,891,464.79
  5. Step 5: Solve for x
    x = 316,891,464.79/20,276.25
  6. Step 6: Final answer
    x = 15,628.70

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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.