Home / 19,676.38-27,129.76-16,078.04

Finding the Fourth Proportional to 19,676.38, 27,129.76 and 16,078.04

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Solution

The fourth proportional to 19,676.38, 27,129.76 and 16,078.04 is: 22,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,676.38 : 27,129.76 = 16,078.04 : x
  2. Step 2: Convert to fraction form
    19,676.38/27,129.76 = 16,078.04/x
  3. Step 3: Cross multiply
    19,676.38x = 27,129.76 × 16,078.04
  4. Step 4: Simplify right side
    19,676.38x = 436,193,366.47
  5. Step 5: Solve for x
    x = 436,193,366.47/19,676.38
  6. Step 6: Final answer
    x = 22,168.37

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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.