Home / 21,133.17-29,163.96-11,701.89

Finding the Fourth Proportional to 21,133.17, 29,163.96 and 11,701.89

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Solution

The fourth proportional to 21,133.17, 29,163.96 and 11,701.89 is: 16,148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.17 : 29,163.96 = 11,701.89 : x
  2. Step 2: Convert to fraction form
    21,133.17/29,163.96 = 11,701.89/x
  3. Step 3: Cross multiply
    21,133.17x = 29,163.96 × 11,701.89
  4. Step 4: Simplify right side
    21,133.17x = 341,273,451.88
  5. Step 5: Solve for x
    x = 341,273,451.88/21,133.17
  6. Step 6: Final answer
    x = 16,148.71

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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.