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Finding the Fourth Proportional to 18,029.28, 27,040.64 and 8,166.22

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Solution

The fourth proportional to 18,029.28, 27,040.64 and 8,166.22 is: 12,247.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,029.28 : 27,040.64 = 8,166.22 : x
  2. Step 2: Convert to fraction form
    18,029.28/27,040.64 = 8,166.22/x
  3. Step 3: Cross multiply
    18,029.28x = 27,040.64 × 8,166.22
  4. Step 4: Simplify right side
    18,029.28x = 220,819,706.75
  5. Step 5: Solve for x
    x = 220,819,706.75/18,029.28
  6. Step 6: Final answer
    x = 12,247.84

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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.