Home / 20,608.32-30,939.48-13,193.04

Finding the Fourth Proportional to 20,608.32, 30,939.48 and 13,193.04

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Solution

The fourth proportional to 20,608.32, 30,939.48 and 13,193.04 is: 19,806.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.32 : 30,939.48 = 13,193.04 : x
  2. Step 2: Convert to fraction form
    20,608.32/30,939.48 = 13,193.04/x
  3. Step 3: Cross multiply
    20,608.32x = 30,939.48 × 13,193.04
  4. Step 4: Simplify right side
    20,608.32x = 408,185,797.22
  5. Step 5: Solve for x
    x = 408,185,797.22/20,608.32
  6. Step 6: Final answer
    x = 19,806.84

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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.