Home / 20,100.44-30,149.43-9,004.15

Finding the Fourth Proportional to 20,100.44, 30,149.43 and 9,004.15

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Solution

The fourth proportional to 20,100.44, 30,149.43 and 9,004.15 is: 13,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.44 : 30,149.43 = 9,004.15 : x
  2. Step 2: Convert to fraction form
    20,100.44/30,149.43 = 9,004.15/x
  3. Step 3: Cross multiply
    20,100.44x = 30,149.43 × 9,004.15
  4. Step 4: Simplify right side
    20,100.44x = 271,469,875.11
  5. Step 5: Solve for x
    x = 271,469,875.11/20,100.44
  6. Step 6: Final answer
    x = 13,505.67

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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.