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Finding the Fourth Proportional to 31.89, 44 and 23.71

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Solution

The fourth proportional to 31.89, 44 and 23.71 is: 32.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.89 : 44 = 23.71 : x
  2. Step 2: Convert to fraction form
    31.89/44 = 23.71/x
  3. Step 3: Cross multiply
    31.89x = 44 × 23.71
  4. Step 4: Simplify right side
    31.89x = 1,043.24
  5. Step 5: Solve for x
    x = 1,043.24/31.89
  6. Step 6: Final answer
    x = 32.71

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.