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Finding the Fourth Proportional to 34,908, 48,172.68 and 20,760.54

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Solution

The fourth proportional to 34,908, 48,172.68 and 20,760.54 is: 28,649.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,908 : 48,172.68 = 20,760.54 : x
  2. Step 2: Convert to fraction form
    34,908/48,172.68 = 20,760.54/x
  3. Step 3: Cross multiply
    34,908x = 48,172.68 × 20,760.54
  4. Step 4: Simplify right side
    34,908x = 1,000,090,850.05
  5. Step 5: Solve for x
    x = 1,000,090,850.05/34,908
  6. Step 6: Final answer
    x = 28,649.33

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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.