Home / 20,380.08-30,563.80-9,843.55

Finding the Fourth Proportional to 20,380.08, 30,563.80 and 9,843.55

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Solution

The fourth proportional to 20,380.08, 30,563.80 and 9,843.55 is: 14,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380.08 : 30,563.80 = 9,843.55 : x
  2. Step 2: Convert to fraction form
    20,380.08/30,563.80 = 9,843.55/x
  3. Step 3: Cross multiply
    20,380.08x = 30,563.80 × 9,843.55
  4. Step 4: Simplify right side
    20,380.08x = 300,856,293.49
  5. Step 5: Solve for x
    x = 300,856,293.49/20,380.08
  6. Step 6: Final answer
    x = 14,762.27

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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.