Home / 20,404.19-30,611.20-8,551.46

Finding the Fourth Proportional to 20,404.19, 30,611.20 and 8,551.46

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Solution

The fourth proportional to 20,404.19, 30,611.20 and 8,551.46 is: 12,829.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.19 : 30,611.20 = 8,551.46 : x
  2. Step 2: Convert to fraction form
    20,404.19/30,611.20 = 8,551.46/x
  3. Step 3: Cross multiply
    20,404.19x = 30,611.20 × 8,551.46
  4. Step 4: Simplify right side
    20,404.19x = 261,770,452.35
  5. Step 5: Solve for x
    x = 261,770,452.35/20,404.19
  6. Step 6: Final answer
    x = 12,829.25

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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.