Home / 20,162.38-27,823.73-11,209.69

Finding the Fourth Proportional to 20,162.38, 27,823.73 and 11,209.69

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Solution

The fourth proportional to 20,162.38, 27,823.73 and 11,209.69 is: 15,469.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.38 : 27,823.73 = 11,209.69 : x
  2. Step 2: Convert to fraction form
    20,162.38/27,823.73 = 11,209.69/x
  3. Step 3: Cross multiply
    20,162.38x = 27,823.73 × 11,209.69
  4. Step 4: Simplify right side
    20,162.38x = 311,895,429.48
  5. Step 5: Solve for x
    x = 311,895,429.48/20,162.38
  6. Step 6: Final answer
    x = 15,469.18

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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.