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Finding the Fourth Proportional to 34.06, 47.04 and 28.54

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Solution

The fourth proportional to 34.06, 47.04 and 28.54 is: 39.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.06 : 47.04 = 28.54 : x
  2. Step 2: Convert to fraction form
    34.06/47.04 = 28.54/x
  3. Step 3: Cross multiply
    34.06x = 47.04 × 28.54
  4. Step 4: Simplify right side
    34.06x = 1,342.14
  5. Step 5: Solve for x
    x = 1,342.14/34.06
  6. Step 6: Final answer
    x = 39.41

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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.