Home / 30,413.28-45,620.16-8,226.84

Finding the Fourth Proportional to 30,413.28, 45,620.16 and 8,226.84

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Solution

The fourth proportional to 30,413.28, 45,620.16 and 8,226.84 is: 12,340.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,413.28 : 45,620.16 = 8,226.84 : x
  2. Step 2: Convert to fraction form
    30,413.28/45,620.16 = 8,226.84/x
  3. Step 3: Cross multiply
    30,413.28x = 45,620.16 × 8,226.84
  4. Step 4: Simplify right side
    30,413.28x = 375,309,757.09
  5. Step 5: Solve for x
    x = 375,309,757.09/30,413.28
  6. Step 6: Final answer
    x = 12,340.32

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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.