Home / 19,163.76-28,789.20-16,539.36

Finding the Fourth Proportional to 19,163.76, 28,789.20 and 16,539.36

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Solution

The fourth proportional to 19,163.76, 28,789.20 and 16,539.36 is: 24,846.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.76 : 28,789.20 = 16,539.36 : x
  2. Step 2: Convert to fraction form
    19,163.76/28,789.20 = 16,539.36/x
  3. Step 3: Cross multiply
    19,163.76x = 28,789.20 × 16,539.36
  4. Step 4: Simplify right side
    19,163.76x = 476,154,942.91
  5. Step 5: Solve for x
    x = 476,154,942.91/19,163.76
  6. Step 6: Final answer
    x = 24,846.63

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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.