Home / 18,939.02-28,413.64-5,791.04

Finding the Fourth Proportional to 18,939.02, 28,413.64 and 5,791.04

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Solution

The fourth proportional to 18,939.02, 28,413.64 and 5,791.04 is: 8,688.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.02 : 28,413.64 = 5,791.04 : x
  2. Step 2: Convert to fraction form
    18,939.02/28,413.64 = 5,791.04/x
  3. Step 3: Cross multiply
    18,939.02x = 28,413.64 × 5,791.04
  4. Step 4: Simplify right side
    18,939.02x = 164,544,525.79
  5. Step 5: Solve for x
    x = 164,544,525.79/18,939.02
  6. Step 6: Final answer
    x = 8,688.12

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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.