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Finding the Fourth Proportional to 24.71, 36.99 and 21.27

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Solution

The fourth proportional to 24.71, 36.99 and 21.27 is: 31.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.71 : 36.99 = 21.27 : x
  2. Step 2: Convert to fraction form
    24.71/36.99 = 21.27/x
  3. Step 3: Cross multiply
    24.71x = 36.99 × 21.27
  4. Step 4: Simplify right side
    24.71x = 786.78
  5. Step 5: Solve for x
    x = 786.78/24.71
  6. Step 6: Final answer
    x = 31.85

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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.