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Finding the Third Proportional to 19 and 26.25

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Solution

The third proportional to 19 and 26.25 is: 36.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19 : 26.25 = 26.25 : x
  2. Step 2: Convert to fraction form
    19/26.25 = 26.25/x
  3. Step 3: Cross multiply
    19x = 26.25 × 26.25
  4. Step 4: Simplify right side
    19x = 689.06
  5. Step 5: Solve for x
    x = 689.06/19
  6. Step 6: Final answer
    x = 36.27

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