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Finding the Fourth Proportional to 20,056, 30,076.56 and 8,951.68

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Solution

The fourth proportional to 20,056, 30,076.56 and 8,951.68 is: 13,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,056 : 30,076.56 = 8,951.68 : x
  2. Step 2: Convert to fraction form
    20,056/30,076.56 = 8,951.68/x
  3. Step 3: Cross multiply
    20,056x = 30,076.56 × 8,951.68
  4. Step 4: Simplify right side
    20,056x = 269,235,740.62
  5. Step 5: Solve for x
    x = 269,235,740.62/20,056
  6. Step 6: Final answer
    x = 13,424.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.