Home / 19,517.47-29,273.99-5,478.64

Finding the Fourth Proportional to 19,517.47, 29,273.99 and 5,478.64

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Solution

The fourth proportional to 19,517.47, 29,273.99 and 5,478.64 is: 8,217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517.47 : 29,273.99 = 5,478.64 : x
  2. Step 2: Convert to fraction form
    19,517.47/29,273.99 = 5,478.64/x
  3. Step 3: Cross multiply
    19,517.47x = 29,273.99 × 5,478.64
  4. Step 4: Simplify right side
    19,517.47x = 160,381,552.00
  5. Step 5: Solve for x
    x = 160,381,552.00/19,517.47
  6. Step 6: Final answer
    x = 8,217.33

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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.