Home / 21,673.08-29,908.84-13,177.96

Finding the Fourth Proportional to 21,673.08, 29,908.84 and 13,177.96

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Solution

The fourth proportional to 21,673.08, 29,908.84 and 13,177.96 is: 18,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.08 : 29,908.84 = 13,177.96 : x
  2. Step 2: Convert to fraction form
    21,673.08/29,908.84 = 13,177.96/x
  3. Step 3: Cross multiply
    21,673.08x = 29,908.84 × 13,177.96
  4. Step 4: Simplify right side
    21,673.08x = 394,137,497.17
  5. Step 5: Solve for x
    x = 394,137,497.17/21,673.08
  6. Step 6: Final answer
    x = 18,185.58

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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.