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Finding the Fourth Proportional to 34.33, 51.70 and 30.55

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Solution

The fourth proportional to 34.33, 51.70 and 30.55 is: 46.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.33 : 51.70 = 30.55 : x
  2. Step 2: Convert to fraction form
    34.33/51.70 = 30.55/x
  3. Step 3: Cross multiply
    34.33x = 51.70 × 30.55
  4. Step 4: Simplify right side
    34.33x = 1,579.44
  5. Step 5: Solve for x
    x = 1,579.44/34.33
  6. Step 6: Final answer
    x = 46.01

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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.