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Finding the Fourth Proportional to 36.24, 49.89 and 25.30

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Solution

The fourth proportional to 36.24, 49.89 and 25.30 is: 34.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.24 : 49.89 = 25.30 : x
  2. Step 2: Convert to fraction form
    36.24/49.89 = 25.30/x
  3. Step 3: Cross multiply
    36.24x = 49.89 × 25.30
  4. Step 4: Simplify right side
    36.24x = 1,262.22
  5. Step 5: Solve for x
    x = 1,262.22/36.24
  6. Step 6: Final answer
    x = 34.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.