Home / 20,413.45-28,166.97-11,461.33

Finding the Fourth Proportional to 20,413.45, 28,166.97 and 11,461.33

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Solution

The fourth proportional to 20,413.45, 28,166.97 and 11,461.33 is: 15,814.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413.45 : 28,166.97 = 11,461.33 : x
  2. Step 2: Convert to fraction form
    20,413.45/28,166.97 = 11,461.33/x
  3. Step 3: Cross multiply
    20,413.45x = 28,166.97 × 11,461.33
  4. Step 4: Simplify right side
    20,413.45x = 322,830,938.27
  5. Step 5: Solve for x
    x = 322,830,938.27/20,413.45
  6. Step 6: Final answer
    x = 15,814.62

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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.