Home / 19,945.96-29,922.49-6,619.75

Finding the Fourth Proportional to 19,945.96, 29,922.49 and 6,619.75

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Solution

The fourth proportional to 19,945.96, 29,922.49 and 6,619.75 is: 9,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,945.96 : 29,922.49 = 6,619.75 : x
  2. Step 2: Convert to fraction form
    19,945.96/29,922.49 = 6,619.75/x
  3. Step 3: Cross multiply
    19,945.96x = 29,922.49 × 6,619.75
  4. Step 4: Simplify right side
    19,945.96x = 198,079,403.18
  5. Step 5: Solve for x
    x = 198,079,403.18/19,945.96
  6. Step 6: Final answer
    x = 9,930.80

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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.