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Finding the Third Proportional to 15 and 36.19

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Solution

The third proportional to 15 and 36.19 is: 87.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15 : 36.19 = 36.19 : x
  2. Step 2: Convert to fraction form
    15/36.19 = 36.19/x
  3. Step 3: Cross multiply
    15x = 36.19 × 36.19
  4. Step 4: Simplify right side
    15x = 1,309.54
  5. Step 5: Solve for x
    x = 1,309.54/15
  6. Step 6: Final answer
    x = 87.30

Related Problems

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.