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Finding the Fourth Proportional to 19,791.93, 29,684.82 and 7,309.12

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Solution

The fourth proportional to 19,791.93, 29,684.82 and 7,309.12 is: 10,962.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791.93 : 29,684.82 = 7,309.12 : x
  2. Step 2: Convert to fraction form
    19,791.93/29,684.82 = 7,309.12/x
  3. Step 3: Cross multiply
    19,791.93x = 29,684.82 × 7,309.12
  4. Step 4: Simplify right side
    19,791.93x = 216,969,911.56
  5. Step 5: Solve for x
    x = 216,969,911.56/19,791.93
  6. Step 6: Final answer
    x = 10,962.54

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