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Finding the Fourth Proportional to 23.83, 35.80 and 13.69

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Solution

The fourth proportional to 23.83, 35.80 and 13.69 is: 20.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.83 : 35.80 = 13.69 : x
  2. Step 2: Convert to fraction form
    23.83/35.80 = 13.69/x
  3. Step 3: Cross multiply
    23.83x = 35.80 × 13.69
  4. Step 4: Simplify right side
    23.83x = 489.92
  5. Step 5: Solve for x
    x = 489.92/23.83
  6. Step 6: Final answer
    x = 20.56

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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.