Home / 19,789.92-27,310.32-12,342.24

Finding the Fourth Proportional to 19,789.92, 27,310.32 and 12,342.24

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Solution

The fourth proportional to 19,789.92, 27,310.32 and 12,342.24 is: 17,032.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.92 : 27,310.32 = 12,342.24 : x
  2. Step 2: Convert to fraction form
    19,789.92/27,310.32 = 12,342.24/x
  3. Step 3: Cross multiply
    19,789.92x = 27,310.32 × 12,342.24
  4. Step 4: Simplify right side
    19,789.92x = 337,070,523.92
  5. Step 5: Solve for x
    x = 337,070,523.92/19,789.92
  6. Step 6: Final answer
    x = 17,032.43

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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.