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Finding the Fourth Proportional to 35.38, 53.33 and 34.57

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Solution

The fourth proportional to 35.38, 53.33 and 34.57 is: 52.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.38 : 53.33 = 34.57 : x
  2. Step 2: Convert to fraction form
    35.38/53.33 = 34.57/x
  3. Step 3: Cross multiply
    35.38x = 53.33 × 34.57
  4. Step 4: Simplify right side
    35.38x = 1,843.31
  5. Step 5: Solve for x
    x = 1,843.31/35.38
  6. Step 6: Final answer
    x = 52.10

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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.