Home / 20,150.36-30,204.38-7,662.60

Finding the Fourth Proportional to 20,150.36, 30,204.38 and 7,662.60

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Solution

The fourth proportional to 20,150.36, 30,204.38 and 7,662.60 is: 11,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.36 : 30,204.38 = 7,662.60 : x
  2. Step 2: Convert to fraction form
    20,150.36/30,204.38 = 7,662.60/x
  3. Step 3: Cross multiply
    20,150.36x = 30,204.38 × 7,662.60
  4. Step 4: Simplify right side
    20,150.36x = 231,444,082.19
  5. Step 5: Solve for x
    x = 231,444,082.19/20,150.36
  6. Step 6: Final answer
    x = 11,485.85

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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.