Home / 28,699.20-43,063.08-19,217.88

Finding the Fourth Proportional to 28,699.20, 43,063.08 and 19,217.88

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Solution

The fourth proportional to 28,699.20, 43,063.08 and 19,217.88 is: 28,836.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.20 : 43,063.08 = 19,217.88 : x
  2. Step 2: Convert to fraction form
    28,699.20/43,063.08 = 19,217.88/x
  3. Step 3: Cross multiply
    28,699.20x = 43,063.08 × 19,217.88
  4. Step 4: Simplify right side
    28,699.20x = 827,581,103.87
  5. Step 5: Solve for x
    x = 827,581,103.87/28,699.20
  6. Step 6: Final answer
    x = 28,836.38

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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.