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Finding the Fourth Proportional to 33, 49.45 and 24.40

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Solution

The fourth proportional to 33, 49.45 and 24.40 is: 36.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33 : 49.45 = 24.40 : x
  2. Step 2: Convert to fraction form
    33/49.45 = 24.40/x
  3. Step 3: Cross multiply
    33x = 49.45 × 24.40
  4. Step 4: Simplify right side
    33x = 1,206.33
  5. Step 5: Solve for x
    x = 1,206.33/33
  6. Step 6: Final answer
    x = 36.56

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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.