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Finding the Fourth Proportional to 20,040.54, 30,060.79 and 8,038.11

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Solution

The fourth proportional to 20,040.54, 30,060.79 and 8,038.11 is: 12,057.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.54 : 30,060.79 = 8,038.11 : x
  2. Step 2: Convert to fraction form
    20,040.54/30,060.79 = 8,038.11/x
  3. Step 3: Cross multiply
    20,040.54x = 30,060.79 × 8,038.11
  4. Step 4: Simplify right side
    20,040.54x = 241,631,896.52
  5. Step 5: Solve for x
    x = 241,631,896.52/20,040.54
  6. Step 6: Final answer
    x = 12,057.15

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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.