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Finding the Fourth Proportional to 18,059, 27,063.90 and 10,165.28

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Solution

The fourth proportional to 18,059, 27,063.90 and 10,165.28 is: 15,234.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,059 : 27,063.90 = 10,165.28 : x
  2. Step 2: Convert to fraction form
    18,059/27,063.90 = 10,165.28/x
  3. Step 3: Cross multiply
    18,059x = 27,063.90 × 10,165.28
  4. Step 4: Simplify right side
    18,059x = 275,112,121.39
  5. Step 5: Solve for x
    x = 275,112,121.39/18,059
  6. Step 6: Final answer
    x = 15,234.07

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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.