Home / 19,669.85-27,144.48-10,717.43

Finding the Fourth Proportional to 19,669.85, 27,144.48 and 10,717.43

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Solution

The fourth proportional to 19,669.85, 27,144.48 and 10,717.43 is: 14,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.85 : 27,144.48 = 10,717.43 : x
  2. Step 2: Convert to fraction form
    19,669.85/27,144.48 = 10,717.43/x
  3. Step 3: Cross multiply
    19,669.85x = 27,144.48 × 10,717.43
  4. Step 4: Simplify right side
    19,669.85x = 290,918,928.56
  5. Step 5: Solve for x
    x = 290,918,928.56/19,669.85
  6. Step 6: Final answer
    x = 14,790.10

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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.