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Finding the Fourth Proportional to 18,055.20, 27,082.80 and 16,672.80

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Solution

The fourth proportional to 18,055.20, 27,082.80 and 16,672.80 is: 25,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,055.20 : 27,082.80 = 16,672.80 : x
  2. Step 2: Convert to fraction form
    18,055.20/27,082.80 = 16,672.80/x
  3. Step 3: Cross multiply
    18,055.20x = 27,082.80 × 16,672.80
  4. Step 4: Simplify right side
    18,055.20x = 451,546,107.84
  5. Step 5: Solve for x
    x = 451,546,107.84/18,055.20
  6. Step 6: Final answer
    x = 25,009.20

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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.