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Finding the Third Proportional to 18.94 and 29.91

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Solution

The third proportional to 18.94 and 29.91 is: 47.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.94 : 29.91 = 29.91 : x
  2. Step 2: Convert to fraction form
    18.94/29.91 = 29.91/x
  3. Step 3: Cross multiply
    18.94x = 29.91 × 29.91
  4. Step 4: Simplify right side
    18.94x = 894.38
  5. Step 5: Solve for x
    x = 894.38/18.94
  6. Step 6: Final answer
    x = 47.23

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.