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Finding the Fourth Proportional to 18,226.80, 27,340.20 and 15,922.80

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Solution

The fourth proportional to 18,226.80, 27,340.20 and 15,922.80 is: 23,884.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,226.80 : 27,340.20 = 15,922.80 : x
  2. Step 2: Convert to fraction form
    18,226.80/27,340.20 = 15,922.80/x
  3. Step 3: Cross multiply
    18,226.80x = 27,340.20 × 15,922.80
  4. Step 4: Simplify right side
    18,226.80x = 435,332,536.56
  5. Step 5: Solve for x
    x = 435,332,536.56/18,226.80
  6. Step 6: Final answer
    x = 23,884.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.