Home / 20,520.96-30,769.12-9,413.73

Finding the Fourth Proportional to 20,520.96, 30,769.12 and 9,413.73

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Solution

The fourth proportional to 20,520.96, 30,769.12 and 9,413.73 is: 14,114.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,520.96 : 30,769.12 = 9,413.73 : x
  2. Step 2: Convert to fraction form
    20,520.96/30,769.12 = 9,413.73/x
  3. Step 3: Cross multiply
    20,520.96x = 30,769.12 × 9,413.73
  4. Step 4: Simplify right side
    20,520.96x = 289,652,188.02
  5. Step 5: Solve for x
    x = 289,652,188.02/20,520.96
  6. Step 6: Final answer
    x = 14,114.94

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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.