Home / 21,169.82-29,214.45-11,738.39

Finding the Fourth Proportional to 21,169.82, 29,214.45 and 11,738.39

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Solution

The fourth proportional to 21,169.82, 29,214.45 and 11,738.39 is: 16,199.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,169.82 : 29,214.45 = 11,738.39 : x
  2. Step 2: Convert to fraction form
    21,169.82/29,214.45 = 11,738.39/x
  3. Step 3: Cross multiply
    21,169.82x = 29,214.45 × 11,738.39
  4. Step 4: Simplify right side
    21,169.82x = 342,930,461.66
  5. Step 5: Solve for x
    x = 342,930,461.66/21,169.82
  6. Step 6: Final answer
    x = 16,199.02

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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.