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Finding the Fourth Proportional to 39.00, 58.23 and 34.39

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Solution

The fourth proportional to 39.00, 58.23 and 34.39 is: 51.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39.00 : 58.23 = 34.39 : x
  2. Step 2: Convert to fraction form
    39.00/58.23 = 34.39/x
  3. Step 3: Cross multiply
    39.00x = 58.23 × 34.39
  4. Step 4: Simplify right side
    39.00x = 2,002.38
  5. Step 5: Solve for x
    x = 2,002.38/39.00
  6. Step 6: Final answer
    x = 51.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.