Home / 20,113.20-30,198.60-11,365.20

Finding the Fourth Proportional to 20,113.20, 30,198.60 and 11,365.20

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Solution

The fourth proportional to 20,113.20, 30,198.60 and 11,365.20 is: 17,064.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.20 : 30,198.60 = 11,365.20 : x
  2. Step 2: Convert to fraction form
    20,113.20/30,198.60 = 11,365.20/x
  3. Step 3: Cross multiply
    20,113.20x = 30,198.60 × 11,365.20
  4. Step 4: Simplify right side
    20,113.20x = 343,213,128.72
  5. Step 5: Solve for x
    x = 343,213,128.72/20,113.20
  6. Step 6: Final answer
    x = 17,064.07

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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.