Home / 20,169.52-27,834.42-11,217.40

Finding the Fourth Proportional to 20,169.52, 27,834.42 and 11,217.40

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Solution

The fourth proportional to 20,169.52, 27,834.42 and 11,217.40 is: 15,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.52 : 27,834.42 = 11,217.40 : x
  2. Step 2: Convert to fraction form
    20,169.52/27,834.42 = 11,217.40/x
  3. Step 3: Cross multiply
    20,169.52x = 27,834.42 × 11,217.40
  4. Step 4: Simplify right side
    20,169.52x = 312,229,822.91
  5. Step 5: Solve for x
    x = 312,229,822.91/20,169.52
  6. Step 6: Final answer
    x = 15,480.28

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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.