Home / 19,725.78-27,224.56-12,073.44

Finding the Fourth Proportional to 19,725.78, 27,224.56 and 12,073.44

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Solution

The fourth proportional to 19,725.78, 27,224.56 and 12,073.44 is: 16,663.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.78 : 27,224.56 = 12,073.44 : x
  2. Step 2: Convert to fraction form
    19,725.78/27,224.56 = 12,073.44/x
  3. Step 3: Cross multiply
    19,725.78x = 27,224.56 × 12,073.44
  4. Step 4: Simplify right side
    19,725.78x = 328,694,091.69
  5. Step 5: Solve for x
    x = 328,694,091.69/19,725.78
  6. Step 6: Final answer
    x = 16,663.17

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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.