Home / 31,844.79-43,933.14-18,413.55

Finding the Fourth Proportional to 31,844.79, 43,933.14 and 18,413.55

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Solution

The fourth proportional to 31,844.79, 43,933.14 and 18,413.55 is: 25,403.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,844.79 : 43,933.14 = 18,413.55 : x
  2. Step 2: Convert to fraction form
    31,844.79/43,933.14 = 18,413.55/x
  3. Step 3: Cross multiply
    31,844.79x = 43,933.14 × 18,413.55
  4. Step 4: Simplify right side
    31,844.79x = 808,965,070.05
  5. Step 5: Solve for x
    x = 808,965,070.05/31,844.79
  6. Step 6: Final answer
    x = 25,403.37

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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.