Home / 21,629.89-29,850.29-12,198.25

Finding the Fourth Proportional to 21,629.89, 29,850.29 and 12,198.25

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Solution

The fourth proportional to 21,629.89, 29,850.29 and 12,198.25 is: 16,834.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.89 : 29,850.29 = 12,198.25 : x
  2. Step 2: Convert to fraction form
    21,629.89/29,850.29 = 12,198.25/x
  3. Step 3: Cross multiply
    21,629.89x = 29,850.29 × 12,198.25
  4. Step 4: Simplify right side
    21,629.89x = 364,121,299.99
  5. Step 5: Solve for x
    x = 364,121,299.99/21,629.89
  6. Step 6: Final answer
    x = 16,834.17

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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.