Home / 20,608.80-30,836.64-12,293.44

Finding the Fourth Proportional to 20,608.80, 30,836.64 and 12,293.44

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Solution

The fourth proportional to 20,608.80, 30,836.64 and 12,293.44 is: 18,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.80 : 30,836.64 = 12,293.44 : x
  2. Step 2: Convert to fraction form
    20,608.80/30,836.64 = 12,293.44/x
  3. Step 3: Cross multiply
    20,608.80x = 30,836.64 × 12,293.44
  4. Step 4: Simplify right side
    20,608.80x = 379,088,383.64
  5. Step 5: Solve for x
    x = 379,088,383.64/20,608.80
  6. Step 6: Final answer
    x = 18,394.49

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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.