Home / 31,413.24-43,356.57-18,663.97

Finding the Fourth Proportional to 31,413.24, 43,356.57 and 18,663.97

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Solution

The fourth proportional to 31,413.24, 43,356.57 and 18,663.97 is: 25,760.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,413.24 : 43,356.57 = 18,663.97 : x
  2. Step 2: Convert to fraction form
    31,413.24/43,356.57 = 18,663.97/x
  3. Step 3: Cross multiply
    31,413.24x = 43,356.57 × 18,663.97
  4. Step 4: Simplify right side
    31,413.24x = 809,205,505.00
  5. Step 5: Solve for x
    x = 809,205,505.00/31,413.24
  6. Step 6: Final answer
    x = 25,760.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.