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Finding the Fourth Proportional to 24.31, 33.56 and 13.95

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Solution

The fourth proportional to 24.31, 33.56 and 13.95 is: 19.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.31 : 33.56 = 13.95 : x
  2. Step 2: Convert to fraction form
    24.31/33.56 = 13.95/x
  3. Step 3: Cross multiply
    24.31x = 33.56 × 13.95
  4. Step 4: Simplify right side
    24.31x = 468.18
  5. Step 5: Solve for x
    x = 468.18/24.31
  6. Step 6: Final answer
    x = 19.26

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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.