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Finding the Fourth Proportional to 34.98, 52.47 and 17.88

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Solution

The fourth proportional to 34.98, 52.47 and 17.88 is: 26.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.98 : 52.47 = 17.88 : x
  2. Step 2: Convert to fraction form
    34.98/52.47 = 17.88/x
  3. Step 3: Cross multiply
    34.98x = 52.47 × 17.88
  4. Step 4: Simplify right side
    34.98x = 938.16
  5. Step 5: Solve for x
    x = 938.16/34.98
  6. Step 6: Final answer
    x = 26.82

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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.