Home / 20,793.06-28,694.40-11,361.62

Finding the Fourth Proportional to 20,793.06, 28,694.40 and 11,361.62

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Solution

The fourth proportional to 20,793.06, 28,694.40 and 11,361.62 is: 15,679.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.06 : 28,694.40 = 11,361.62 : x
  2. Step 2: Convert to fraction form
    20,793.06/28,694.40 = 11,361.62/x
  3. Step 3: Cross multiply
    20,793.06x = 28,694.40 × 11,361.62
  4. Step 4: Simplify right side
    20,793.06x = 326,014,961.97
  5. Step 5: Solve for x
    x = 326,014,961.97/20,793.06
  6. Step 6: Final answer
    x = 15,679.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.