Home / 20,162.26-27,822.18-11,209.60

Finding the Fourth Proportional to 20,162.26, 27,822.18 and 11,209.60

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Solution

The fourth proportional to 20,162.26, 27,822.18 and 11,209.60 is: 15,468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.26 : 27,822.18 = 11,209.60 : x
  2. Step 2: Convert to fraction form
    20,162.26/27,822.18 = 11,209.60/x
  3. Step 3: Cross multiply
    20,162.26x = 27,822.18 × 11,209.60
  4. Step 4: Simplify right side
    20,162.26x = 311,875,508.93
  5. Step 5: Solve for x
    x = 311,875,508.93/20,162.26
  6. Step 6: Final answer
    x = 15,468.28

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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.