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Finding the Fourth Proportional to 23.69, 32.60 and 23.18

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Solution

The fourth proportional to 23.69, 32.60 and 23.18 is: 31.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.69 : 32.60 = 23.18 : x
  2. Step 2: Convert to fraction form
    23.69/32.60 = 23.18/x
  3. Step 3: Cross multiply
    23.69x = 32.60 × 23.18
  4. Step 4: Simplify right side
    23.69x = 755.39
  5. Step 5: Solve for x
    x = 755.39/23.69
  6. Step 6: Final answer
    x = 31.89

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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.