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Finding the Fourth Proportional to 27.55, 38 and 16.62

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Solution

The fourth proportional to 27.55, 38 and 16.62 is: 22.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.55 : 38 = 16.62 : x
  2. Step 2: Convert to fraction form
    27.55/38 = 16.62/x
  3. Step 3: Cross multiply
    27.55x = 38 × 16.62
  4. Step 4: Simplify right side
    27.55x = 631.56
  5. Step 5: Solve for x
    x = 631.56/27.55
  6. Step 6: Final answer
    x = 22.92

Related Problems

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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.