Home / 20,072.09-30,074.17-12,150.60

Finding the Fourth Proportional to 20,072.09, 30,074.17 and 12,150.60

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Solution

The fourth proportional to 20,072.09, 30,074.17 and 12,150.60 is: 18,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.09 : 30,074.17 = 12,150.60 : x
  2. Step 2: Convert to fraction form
    20,072.09/30,074.17 = 12,150.60/x
  3. Step 3: Cross multiply
    20,072.09x = 30,074.17 × 12,150.60
  4. Step 4: Simplify right side
    20,072.09x = 365,419,210.00
  5. Step 5: Solve for x
    x = 365,419,210.00/20,072.09
  6. Step 6: Final answer
    x = 18,205.34

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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.