Home / 19,911.44-29,880.12-8,825.36

Finding the Fourth Proportional to 19,911.44, 29,880.12 and 8,825.36

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Solution

The fourth proportional to 19,911.44, 29,880.12 and 8,825.36 is: 13,243.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.44 : 29,880.12 = 8,825.36 : x
  2. Step 2: Convert to fraction form
    19,911.44/29,880.12 = 8,825.36/x
  3. Step 3: Cross multiply
    19,911.44x = 29,880.12 × 8,825.36
  4. Step 4: Simplify right side
    19,911.44x = 263,702,815.84
  5. Step 5: Solve for x
    x = 263,702,815.84/19,911.44
  6. Step 6: Final answer
    x = 13,243.78

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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.