Home / 20,162.10-27,824.58-11,209.26

Finding the Fourth Proportional to 20,162.10, 27,824.58 and 11,209.26

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Solution

The fourth proportional to 20,162.10, 27,824.58 and 11,209.26 is: 15,469.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.10 : 27,824.58 = 11,209.26 : x
  2. Step 2: Convert to fraction form
    20,162.10/27,824.58 = 11,209.26/x
  3. Step 3: Cross multiply
    20,162.10x = 27,824.58 × 11,209.26
  4. Step 4: Simplify right side
    20,162.10x = 311,892,951.61
  5. Step 5: Solve for x
    x = 311,892,951.61/20,162.10
  6. Step 6: Final answer
    x = 15,469.27

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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.