Home / 19,221.87-28,837.61-5,370.75

Finding the Fourth Proportional to 19,221.87, 28,837.61 and 5,370.75

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Solution

The fourth proportional to 19,221.87, 28,837.61 and 5,370.75 is: 8,057.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,221.87 : 28,837.61 = 5,370.75 : x
  2. Step 2: Convert to fraction form
    19,221.87/28,837.61 = 5,370.75/x
  3. Step 3: Cross multiply
    19,221.87x = 28,837.61 × 5,370.75
  4. Step 4: Simplify right side
    19,221.87x = 154,879,567.05
  5. Step 5: Solve for x
    x = 154,879,567.05/19,221.87
  6. Step 6: Final answer
    x = 8,057.47

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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.