Home / 20,580.35-30,845.90-9,475.85

Finding the Fourth Proportional to 20,580.35, 30,845.90 and 9,475.85

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Solution

The fourth proportional to 20,580.35, 30,845.90 and 9,475.85 is: 14,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.35 : 30,845.90 = 9,475.85 : x
  2. Step 2: Convert to fraction form
    20,580.35/30,845.90 = 9,475.85/x
  3. Step 3: Cross multiply
    20,580.35x = 30,845.90 × 9,475.85
  4. Step 4: Simplify right side
    20,580.35x = 292,290,919.91
  5. Step 5: Solve for x
    x = 292,290,919.91/20,580.35
  6. Step 6: Final answer
    x = 14,202.43

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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.