Home / 20,413.49-30,606.31-10,393.61

Finding the Fourth Proportional to 20,413.49, 30,606.31 and 10,393.61

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Solution

The fourth proportional to 20,413.49, 30,606.31 and 10,393.61 is: 15,583.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413.49 : 30,606.31 = 10,393.61 : x
  2. Step 2: Convert to fraction form
    20,413.49/30,606.31 = 10,393.61/x
  3. Step 3: Cross multiply
    20,413.49x = 30,606.31 × 10,393.61
  4. Step 4: Simplify right side
    20,413.49x = 318,110,049.68
  5. Step 5: Solve for x
    x = 318,110,049.68/20,413.49
  6. Step 6: Final answer
    x = 15,583.33

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1.5x scale

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.