Home / 19,211.94-28,821.40-9,351.24

Finding the Fourth Proportional to 19,211.94, 28,821.40 and 9,351.24

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Solution

The fourth proportional to 19,211.94, 28,821.40 and 9,351.24 is: 14,028.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.94 : 28,821.40 = 9,351.24 : x
  2. Step 2: Convert to fraction form
    19,211.94/28,821.40 = 9,351.24/x
  3. Step 3: Cross multiply
    19,211.94x = 28,821.40 × 9,351.24
  4. Step 4: Simplify right side
    19,211.94x = 269,515,828.54
  5. Step 5: Solve for x
    x = 269,515,828.54/19,211.94
  6. Step 6: Final answer
    x = 14,028.56

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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.