Home / 20,413.82-30,621.04-7,265.85

Finding the Fourth Proportional to 20,413.82, 30,621.04 and 7,265.85

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Solution

The fourth proportional to 20,413.82, 30,621.04 and 7,265.85 is: 10,898.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413.82 : 30,621.04 = 7,265.85 : x
  2. Step 2: Convert to fraction form
    20,413.82/30,621.04 = 7,265.85/x
  3. Step 3: Cross multiply
    20,413.82x = 30,621.04 × 7,265.85
  4. Step 4: Simplify right side
    20,413.82x = 222,487,922.73
  5. Step 5: Solve for x
    x = 222,487,922.73/20,413.82
  6. Step 6: Final answer
    x = 10,898.89

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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.