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Finding the Fourth Proportional to 18.38, 27.45 and 15.01

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Solution

The fourth proportional to 18.38, 27.45 and 15.01 is: 22.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.38 : 27.45 = 15.01 : x
  2. Step 2: Convert to fraction form
    18.38/27.45 = 15.01/x
  3. Step 3: Cross multiply
    18.38x = 27.45 × 15.01
  4. Step 4: Simplify right side
    18.38x = 411.96
  5. Step 5: Solve for x
    x = 411.96/18.38
  6. Step 6: Final answer
    x = 22.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.