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Finding the Fourth Proportional to 35.09, 48.39 and 25.23

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Solution

The fourth proportional to 35.09, 48.39 and 25.23 is: 34.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.09 : 48.39 = 25.23 : x
  2. Step 2: Convert to fraction form
    35.09/48.39 = 25.23/x
  3. Step 3: Cross multiply
    35.09x = 48.39 × 25.23
  4. Step 4: Simplify right side
    35.09x = 1,220.88
  5. Step 5: Solve for x
    x = 1,220.88/35.09
  6. Step 6: Final answer
    x = 34.80

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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.