Home / 19,790.33-29,660.11-8,089.61

Finding the Fourth Proportional to 19,790.33, 29,660.11 and 8,089.61

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Solution

The fourth proportional to 19,790.33, 29,660.11 and 8,089.61 is: 12,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.33 : 29,660.11 = 8,089.61 : x
  2. Step 2: Convert to fraction form
    19,790.33/29,660.11 = 8,089.61/x
  3. Step 3: Cross multiply
    19,790.33x = 29,660.11 × 8,089.61
  4. Step 4: Simplify right side
    19,790.33x = 239,938,553.93
  5. Step 5: Solve for x
    x = 239,938,553.93/19,790.33
  6. Step 6: Final answer
    x = 12,124.03

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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.