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Finding the Fourth Proportional to 31.63, 43.52 and 24.69

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Solution

The fourth proportional to 31.63, 43.52 and 24.69 is: 33.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.63 : 43.52 = 24.69 : x
  2. Step 2: Convert to fraction form
    31.63/43.52 = 24.69/x
  3. Step 3: Cross multiply
    31.63x = 43.52 × 24.69
  4. Step 4: Simplify right side
    31.63x = 1,074.51
  5. Step 5: Solve for x
    x = 1,074.51/31.63
  6. Step 6: Final answer
    x = 33.97

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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.