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Finding the Third Proportional to 26 and 39

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Solution

The third proportional to 26 and 39 is: 58.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26 : 39 = 39 : x
  2. Step 2: Convert to fraction form
    26/39 = 39/x
  3. Step 3: Cross multiply
    26x = 39 × 39
  4. Step 4: Simplify right side
    26x = 1,521
  5. Step 5: Solve for x
    x = 1,521/26
  6. Step 6: Final answer
    x = 58.50

Related Problems

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.