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Finding the Fourth Proportional to 18,292.24, 27,413.76 and 13,338.70

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Solution

The fourth proportional to 18,292.24, 27,413.76 and 13,338.70 is: 19,990.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.24 : 27,413.76 = 13,338.70 : x
  2. Step 2: Convert to fraction form
    18,292.24/27,413.76 = 13,338.70/x
  3. Step 3: Cross multiply
    18,292.24x = 27,413.76 × 13,338.70
  4. Step 4: Simplify right side
    18,292.24x = 365,663,920.51
  5. Step 5: Solve for x
    x = 365,663,920.51/18,292.24
  6. Step 6: Final answer
    x = 19,990.11

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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.