Home / 19,318.75-28,980.60-5,467.75

Finding the Fourth Proportional to 19,318.75, 28,980.60 and 5,467.75

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Solution

The fourth proportional to 19,318.75, 28,980.60 and 5,467.75 is: 8,202.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.75 : 28,980.60 = 5,467.75 : x
  2. Step 2: Convert to fraction form
    19,318.75/28,980.60 = 5,467.75/x
  3. Step 3: Cross multiply
    19,318.75x = 28,980.60 × 5,467.75
  4. Step 4: Simplify right side
    19,318.75x = 158,458,675.65
  5. Step 5: Solve for x
    x = 158,458,675.65/19,318.75
  6. Step 6: Final answer
    x = 8,202.33

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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.