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Finding the Fourth Proportional to 30,220.48, 41,699.37 and 16,791.49

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Solution

The fourth proportional to 30,220.48, 41,699.37 and 16,791.49 is: 23,169.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,220.48 : 41,699.37 = 16,791.49 : x
  2. Step 2: Convert to fraction form
    30,220.48/41,699.37 = 16,791.49/x
  3. Step 3: Cross multiply
    30,220.48x = 41,699.37 × 16,791.49
  4. Step 4: Simplify right side
    30,220.48x = 700,194,554.36
  5. Step 5: Solve for x
    x = 700,194,554.36/30,220.48
  6. Step 6: Final answer
    x = 23,169.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.