Home / 19,669.79-27,143.97-10,717.37

Finding the Fourth Proportional to 19,669.79, 27,143.97 and 10,717.37

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Solution

The fourth proportional to 19,669.79, 27,143.97 and 10,717.37 is: 14,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.79 : 27,143.97 = 10,717.37 : x
  2. Step 2: Convert to fraction form
    19,669.79/27,143.97 = 10,717.37/x
  3. Step 3: Cross multiply
    19,669.79x = 27,143.97 × 10,717.37
  4. Step 4: Simplify right side
    19,669.79x = 290,911,949.23
  5. Step 5: Solve for x
    x = 290,911,949.23/19,669.79
  6. Step 6: Final answer
    x = 14,789.78

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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.