Home / 19,669.85-27,143.59-10,717.41

Finding the Fourth Proportional to 19,669.85, 27,143.59 and 10,717.41

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Solution

The fourth proportional to 19,669.85, 27,143.59 and 10,717.41 is: 14,789.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.85 : 27,143.59 = 10,717.41 : x
  2. Step 2: Convert to fraction form
    19,669.85/27,143.59 = 10,717.41/x
  3. Step 3: Cross multiply
    19,669.85x = 27,143.59 × 10,717.41
  4. Step 4: Simplify right side
    19,669.85x = 290,908,982.90
  5. Step 5: Solve for x
    x = 290,908,982.90/19,669.85
  6. Step 6: Final answer
    x = 14,789.59

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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.