Home / 19,921.84-29,901.22-10,067.99

Finding the Fourth Proportional to 19,921.84, 29,901.22 and 10,067.99

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Solution

The fourth proportional to 19,921.84, 29,901.22 and 10,067.99 is: 15,111.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.84 : 29,901.22 = 10,067.99 : x
  2. Step 2: Convert to fraction form
    19,921.84/29,901.22 = 10,067.99/x
  3. Step 3: Cross multiply
    19,921.84x = 29,901.22 × 10,067.99
  4. Step 4: Simplify right side
    19,921.84x = 301,045,183.95
  5. Step 5: Solve for x
    x = 301,045,183.95/19,921.84
  6. Step 6: Final answer
    x = 15,111.31

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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.