Home / 19,716.09-29,540.72-11,908.50

Finding the Fourth Proportional to 19,716.09, 29,540.72 and 11,908.50

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Solution

The fourth proportional to 19,716.09, 29,540.72 and 11,908.50 is: 17,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,716.09 : 29,540.72 = 11,908.50 : x
  2. Step 2: Convert to fraction form
    19,716.09/29,540.72 = 11,908.50/x
  3. Step 3: Cross multiply
    19,716.09x = 29,540.72 × 11,908.50
  4. Step 4: Simplify right side
    19,716.09x = 351,785,664.12
  5. Step 5: Solve for x
    x = 351,785,664.12/19,716.09
  6. Step 6: Final answer
    x = 17,842.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.