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Finding the Fourth Proportional to 22,413.40, 33,620.10 and 19,907.80

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Solution

The fourth proportional to 22,413.40, 33,620.10 and 19,907.80 is: 29,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,413.40 : 33,620.10 = 19,907.80 : x
  2. Step 2: Convert to fraction form
    22,413.40/33,620.10 = 19,907.80/x
  3. Step 3: Cross multiply
    22,413.40x = 33,620.10 × 19,907.80
  4. Step 4: Simplify right side
    22,413.40x = 669,302,226.78
  5. Step 5: Solve for x
    x = 669,302,226.78/22,413.40
  6. Step 6: Final answer
    x = 29,861.70

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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.