Home / 21,494.88-29,662.56-11,934.72

Finding the Fourth Proportional to 21,494.88, 29,662.56 and 11,934.72

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Solution

The fourth proportional to 21,494.88, 29,662.56 and 11,934.72 is: 16,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,494.88 : 29,662.56 = 11,934.72 : x
  2. Step 2: Convert to fraction form
    21,494.88/29,662.56 = 11,934.72/x
  3. Step 3: Cross multiply
    21,494.88x = 29,662.56 × 11,934.72
  4. Step 4: Simplify right side
    21,494.88x = 354,014,348.08
  5. Step 5: Solve for x
    x = 354,014,348.08/21,494.88
  6. Step 6: Final answer
    x = 16,469.71

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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.