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Finding the Fourth Proportional to 17, 25.50 and 16.72

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Solution

The fourth proportional to 17, 25.50 and 16.72 is: 25.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17 : 25.50 = 16.72 : x
  2. Step 2: Convert to fraction form
    17/25.50 = 16.72/x
  3. Step 3: Cross multiply
    17x = 25.50 × 16.72
  4. Step 4: Simplify right side
    17x = 426.36
  5. Step 5: Solve for x
    x = 426.36/17
  6. Step 6: Final answer
    x = 25.08

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.