Home / 20,161.56-30,241.80-5,370.60

Finding the Fourth Proportional to 20,161.56, 30,241.80 and 5,370.60

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Solution

The fourth proportional to 20,161.56, 30,241.80 and 5,370.60 is: 8,055.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.56 : 30,241.80 = 5,370.60 : x
  2. Step 2: Convert to fraction form
    20,161.56/30,241.80 = 5,370.60/x
  3. Step 3: Cross multiply
    20,161.56x = 30,241.80 × 5,370.60
  4. Step 4: Simplify right side
    20,161.56x = 162,416,611.08
  5. Step 5: Solve for x
    x = 162,416,611.08/20,161.56
  6. Step 6: Final answer
    x = 8,055.76

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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.