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Finding the Fourth Proportional to 34.44, 47.53 and 18.90

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Solution

The fourth proportional to 34.44, 47.53 and 18.90 is: 26.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.44 : 47.53 = 18.90 : x
  2. Step 2: Convert to fraction form
    34.44/47.53 = 18.90/x
  3. Step 3: Cross multiply
    34.44x = 47.53 × 18.90
  4. Step 4: Simplify right side
    34.44x = 898.35
  5. Step 5: Solve for x
    x = 898.35/34.44
  6. Step 6: Final answer
    x = 26.08

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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.