Home / 19,099.90-28,650.22-6,620.33

Finding the Fourth Proportional to 19,099.90, 28,650.22 and 6,620.33

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Solution

The fourth proportional to 19,099.90, 28,650.22 and 6,620.33 is: 9,930.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,099.90 : 28,650.22 = 6,620.33 : x
  2. Step 2: Convert to fraction form
    19,099.90/28,650.22 = 6,620.33/x
  3. Step 3: Cross multiply
    19,099.90x = 28,650.22 × 6,620.33
  4. Step 4: Simplify right side
    19,099.90x = 189,673,910.97
  5. Step 5: Solve for x
    x = 189,673,910.97/19,099.90
  6. Step 6: Final answer
    x = 9,930.62

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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.