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Finding the Fourth Proportional to 23.46, 35.35 and 21.97

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Solution

The fourth proportional to 23.46, 35.35 and 21.97 is: 33.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.46 : 35.35 = 21.97 : x
  2. Step 2: Convert to fraction form
    23.46/35.35 = 21.97/x
  3. Step 3: Cross multiply
    23.46x = 35.35 × 21.97
  4. Step 4: Simplify right side
    23.46x = 776.64
  5. Step 5: Solve for x
    x = 776.64/23.46
  6. Step 6: Final answer
    x = 33.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.