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Finding the Fourth Proportional to 24.90, 34.28 and 22.88

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Solution

The fourth proportional to 24.90, 34.28 and 22.88 is: 31.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.90 : 34.28 = 22.88 : x
  2. Step 2: Convert to fraction form
    24.90/34.28 = 22.88/x
  3. Step 3: Cross multiply
    24.90x = 34.28 × 22.88
  4. Step 4: Simplify right side
    24.90x = 784.33
  5. Step 5: Solve for x
    x = 784.33/24.90
  6. Step 6: Final answer
    x = 31.50

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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.