Home / 20,571.32-30,850.50-13,069.64

Finding the Fourth Proportional to 20,571.32, 30,850.50 and 13,069.64

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Solution

The fourth proportional to 20,571.32, 30,850.50 and 13,069.64 is: 19,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.32 : 30,850.50 = 13,069.64 : x
  2. Step 2: Convert to fraction form
    20,571.32/30,850.50 = 13,069.64/x
  3. Step 3: Cross multiply
    20,571.32x = 30,850.50 × 13,069.64
  4. Step 4: Simplify right side
    20,571.32x = 403,204,928.82
  5. Step 5: Solve for x
    x = 403,204,928.82/20,571.32
  6. Step 6: Final answer
    x = 19,600.34

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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.