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Finding the Third Proportional to 15 and 35.63

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Solution

The third proportional to 15 and 35.63 is: 84.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15 : 35.63 = 35.63 : x
  2. Step 2: Convert to fraction form
    15/35.63 = 35.63/x
  3. Step 3: Cross multiply
    15x = 35.63 × 35.63
  4. Step 4: Simplify right side
    15x = 1,269.14
  5. Step 5: Solve for x
    x = 1,269.14/15
  6. Step 6: Final answer
    x = 84.61

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.