Home / 18,939.44-28,413.23-5,791.38

Finding the Fourth Proportional to 18,939.44, 28,413.23 and 5,791.38

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Solution

The fourth proportional to 18,939.44, 28,413.23 and 5,791.38 is: 8,688.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.44 : 28,413.23 = 5,791.38 : x
  2. Step 2: Convert to fraction form
    18,939.44/28,413.23 = 5,791.38/x
  3. Step 3: Cross multiply
    18,939.44x = 28,413.23 × 5,791.38
  4. Step 4: Simplify right side
    18,939.44x = 164,551,783.00
  5. Step 5: Solve for x
    x = 164,551,783.00/18,939.44
  6. Step 6: Final answer
    x = 8,688.32

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Why These Related Problems?

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