Home / 21,137.94-29,163.78-14,065.56

Finding the Fourth Proportional to 21,137.94, 29,163.78 and 14,065.56

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Solution

The fourth proportional to 21,137.94, 29,163.78 and 14,065.56 is: 19,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137.94 : 29,163.78 = 14,065.56 : x
  2. Step 2: Convert to fraction form
    21,137.94/29,163.78 = 14,065.56/x
  3. Step 3: Cross multiply
    21,137.94x = 29,163.78 × 14,065.56
  4. Step 4: Simplify right side
    21,137.94x = 410,204,897.42
  5. Step 5: Solve for x
    x = 410,204,897.42/21,137.94
  6. Step 6: Final answer
    x = 19,406.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.