Home / 19,579.31-27,019.49-11,195.81

Finding the Fourth Proportional to 19,579.31, 27,019.49 and 11,195.81

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Solution

The fourth proportional to 19,579.31, 27,019.49 and 11,195.81 is: 15,450.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.31 : 27,019.49 = 11,195.81 : x
  2. Step 2: Convert to fraction form
    19,579.31/27,019.49 = 11,195.81/x
  3. Step 3: Cross multiply
    19,579.31x = 27,019.49 × 11,195.81
  4. Step 4: Simplify right side
    19,579.31x = 302,505,087.91
  5. Step 5: Solve for x
    x = 302,505,087.91/19,579.31
  6. Step 6: Final answer
    x = 15,450.24

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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.