Home / 20,313.28-30,451.62-7,163.32

Finding the Fourth Proportional to 20,313.28, 30,451.62 and 7,163.32

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Solution

The fourth proportional to 20,313.28, 30,451.62 and 7,163.32 is: 10,738.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,313.28 : 30,451.62 = 7,163.32 : x
  2. Step 2: Convert to fraction form
    20,313.28/30,451.62 = 7,163.32/x
  3. Step 3: Cross multiply
    20,313.28x = 30,451.62 × 7,163.32
  4. Step 4: Simplify right side
    20,313.28x = 218,134,698.58
  5. Step 5: Solve for x
    x = 218,134,698.58/20,313.28
  6. Step 6: Final answer
    x = 10,738.53

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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.