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Finding the Fourth Proportional to 32.71, 48.80 and 29.30

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Solution

The fourth proportional to 32.71, 48.80 and 29.30 is: 43.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.71 : 48.80 = 29.30 : x
  2. Step 2: Convert to fraction form
    32.71/48.80 = 29.30/x
  3. Step 3: Cross multiply
    32.71x = 48.80 × 29.30
  4. Step 4: Simplify right side
    32.71x = 1,429.45
  5. Step 5: Solve for x
    x = 1,429.45/32.71
  6. Step 6: Final answer
    x = 43.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.