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Finding the Fourth Proportional to 24.48, 36.90 and 20.52

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Solution

The fourth proportional to 24.48, 36.90 and 20.52 is: 30.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.48 : 36.90 = 20.52 : x
  2. Step 2: Convert to fraction form
    24.48/36.90 = 20.52/x
  3. Step 3: Cross multiply
    24.48x = 36.90 × 20.52
  4. Step 4: Simplify right side
    24.48x = 757.19
  5. Step 5: Solve for x
    x = 757.19/24.48
  6. Step 6: Final answer
    x = 30.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.