Home / 19,936.45-27,481.84-12,853.81

Finding the Fourth Proportional to 19,936.45, 27,481.84 and 12,853.81

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Solution

The fourth proportional to 19,936.45, 27,481.84 and 12,853.81 is: 17,718.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936.45 : 27,481.84 = 12,853.81 : x
  2. Step 2: Convert to fraction form
    19,936.45/27,481.84 = 12,853.81/x
  3. Step 3: Cross multiply
    19,936.45x = 27,481.84 × 12,853.81
  4. Step 4: Simplify right side
    19,936.45x = 353,246,349.81
  5. Step 5: Solve for x
    x = 353,246,349.81/19,936.45
  6. Step 6: Final answer
    x = 17,718.62

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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.