Home / 20,373.86-30,560.80-11,609.30

Finding the Fourth Proportional to 20,373.86, 30,560.80 and 11,609.30

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Solution

The fourth proportional to 20,373.86, 30,560.80 and 11,609.30 is: 17,413.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.86 : 30,560.80 = 11,609.30 : x
  2. Step 2: Convert to fraction form
    20,373.86/30,560.80 = 11,609.30/x
  3. Step 3: Cross multiply
    20,373.86x = 30,560.80 × 11,609.30
  4. Step 4: Simplify right side
    20,373.86x = 354,789,495.44
  5. Step 5: Solve for x
    x = 354,789,495.44/20,373.86
  6. Step 6: Final answer
    x = 17,413.96

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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.