Home / 19,023.24-28,519.39-7,938.19

Finding the Fourth Proportional to 19,023.24, 28,519.39 and 7,938.19

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Solution

The fourth proportional to 19,023.24, 28,519.39 and 7,938.19 is: 11,900.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,023.24 : 28,519.39 = 7,938.19 : x
  2. Step 2: Convert to fraction form
    19,023.24/28,519.39 = 7,938.19/x
  3. Step 3: Cross multiply
    19,023.24x = 28,519.39 × 7,938.19
  4. Step 4: Simplify right side
    19,023.24x = 226,392,336.50
  5. Step 5: Solve for x
    x = 226,392,336.50/19,023.24
  6. Step 6: Final answer
    x = 11,900.83

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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.