Home / 21,961.80-32,945.00-6,379.43

Finding the Fourth Proportional to 21,961.80, 32,945.00 and 6,379.43

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Solution

The fourth proportional to 21,961.80, 32,945.00 and 6,379.43 is: 9,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961.80 : 32,945.00 = 6,379.43 : x
  2. Step 2: Convert to fraction form
    21,961.80/32,945.00 = 6,379.43/x
  3. Step 3: Cross multiply
    21,961.80x = 32,945.00 × 6,379.43
  4. Step 4: Simplify right side
    21,961.80x = 210,170,124.73
  5. Step 5: Solve for x
    x = 210,170,124.73/21,961.80
  6. Step 6: Final answer
    x = 9,569.80

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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.