Home / 20,609.39-30,915.37-5,819.44

Finding the Fourth Proportional to 20,609.39, 30,915.37 and 5,819.44

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Solution

The fourth proportional to 20,609.39, 30,915.37 and 5,819.44 is: 8,729.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609.39 : 30,915.37 = 5,819.44 : x
  2. Step 2: Convert to fraction form
    20,609.39/30,915.37 = 5,819.44/x
  3. Step 3: Cross multiply
    20,609.39x = 30,915.37 × 5,819.44
  4. Step 4: Simplify right side
    20,609.39x = 179,910,203.53
  5. Step 5: Solve for x
    x = 179,910,203.53/20,609.39
  6. Step 6: Final answer
    x = 8,729.53

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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.