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Finding the Fourth Proportional to 18,216.80, 27,325.20 and 17,196.20

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Solution

The fourth proportional to 18,216.80, 27,325.20 and 17,196.20 is: 25,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.80 : 27,325.20 = 17,196.20 : x
  2. Step 2: Convert to fraction form
    18,216.80/27,325.20 = 17,196.20/x
  3. Step 3: Cross multiply
    18,216.80x = 27,325.20 × 17,196.20
  4. Step 4: Simplify right side
    18,216.80x = 469,889,604.24
  5. Step 5: Solve for x
    x = 469,889,604.24/18,216.80
  6. Step 6: Final answer
    x = 25,794.30

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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.