Home / 22,290.80-33,450.84-8,439.92

Finding the Fourth Proportional to 22,290.80, 33,450.84 and 8,439.92

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Solution

The fourth proportional to 22,290.80, 33,450.84 and 8,439.92 is: 12,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,290.80 : 33,450.84 = 8,439.92 : x
  2. Step 2: Convert to fraction form
    22,290.80/33,450.84 = 8,439.92/x
  3. Step 3: Cross multiply
    22,290.80x = 33,450.84 × 8,439.92
  4. Step 4: Simplify right side
    22,290.80x = 282,322,413.53
  5. Step 5: Solve for x
    x = 282,322,413.53/22,290.80
  6. Step 6: Final answer
    x = 12,665.42

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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.