Home / 21,177.26-29,229.94-14,382.79

Finding the Fourth Proportional to 21,177.26, 29,229.94 and 14,382.79

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Solution

The fourth proportional to 21,177.26, 29,229.94 and 14,382.79 is: 19,851.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.26 : 29,229.94 = 14,382.79 : x
  2. Step 2: Convert to fraction form
    21,177.26/29,229.94 = 14,382.79/x
  3. Step 3: Cross multiply
    21,177.26x = 29,229.94 × 14,382.79
  4. Step 4: Simplify right side
    21,177.26x = 420,408,033.64
  5. Step 5: Solve for x
    x = 420,408,033.64/21,177.26
  6. Step 6: Final answer
    x = 19,851.86

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1.5x scale

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.