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Finding the Fourth Proportional to 39,994.62, 59,992.92 and 10,413.78

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Solution

The fourth proportional to 39,994.62, 59,992.92 and 10,413.78 is: 15,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,994.62 : 59,992.92 = 10,413.78 : x
  2. Step 2: Convert to fraction form
    39,994.62/59,992.92 = 10,413.78/x
  3. Step 3: Cross multiply
    39,994.62x = 59,992.92 × 10,413.78
  4. Step 4: Simplify right side
    39,994.62x = 624,753,070.44
  5. Step 5: Solve for x
    x = 624,753,070.44/39,994.62
  6. Step 6: Final answer
    x = 15,620.93

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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.