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Finding the Fourth Proportional to 23.52, 35.45 and 21.34

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Solution

The fourth proportional to 23.52, 35.45 and 21.34 is: 32.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.52 : 35.45 = 21.34 : x
  2. Step 2: Convert to fraction form
    23.52/35.45 = 21.34/x
  3. Step 3: Cross multiply
    23.52x = 35.45 × 21.34
  4. Step 4: Simplify right side
    23.52x = 756.50
  5. Step 5: Solve for x
    x = 756.50/23.52
  6. Step 6: Final answer
    x = 32.16

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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.