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Finding the Fourth Proportional to 24.54, 33.77 and 21.12

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Solution

The fourth proportional to 24.54, 33.77 and 21.12 is: 29.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.54 : 33.77 = 21.12 : x
  2. Step 2: Convert to fraction form
    24.54/33.77 = 21.12/x
  3. Step 3: Cross multiply
    24.54x = 33.77 × 21.12
  4. Step 4: Simplify right side
    24.54x = 713.12
  5. Step 5: Solve for x
    x = 713.12/24.54
  6. Step 6: Final answer
    x = 29.06

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