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Finding the Fourth Proportional to 37.94, 52.34 and 23.18

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Solution

The fourth proportional to 37.94, 52.34 and 23.18 is: 31.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.94 : 52.34 = 23.18 : x
  2. Step 2: Convert to fraction form
    37.94/52.34 = 23.18/x
  3. Step 3: Cross multiply
    37.94x = 52.34 × 23.18
  4. Step 4: Simplify right side
    37.94x = 1,212.86
  5. Step 5: Solve for x
    x = 1,212.86/37.94
  6. Step 6: Final answer
    x = 31.97

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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.