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Finding the Fourth Proportional to 39.82, 59.48 and 32.98

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Solution

The fourth proportional to 39.82, 59.48 and 32.98 is: 49.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39.82 : 59.48 = 32.98 : x
  2. Step 2: Convert to fraction form
    39.82/59.48 = 32.98/x
  3. Step 3: Cross multiply
    39.82x = 59.48 × 32.98
  4. Step 4: Simplify right side
    39.82x = 1,961.65
  5. Step 5: Solve for x
    x = 1,961.65/39.82
  6. Step 6: Final answer
    x = 49.26

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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.