Home / 19,725.75-27,224.10-11,342.25

Finding the Fourth Proportional to 19,725.75, 27,224.10 and 11,342.25

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Solution

The fourth proportional to 19,725.75, 27,224.10 and 11,342.25 is: 15,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.75 : 27,224.10 = 11,342.25 : x
  2. Step 2: Convert to fraction form
    19,725.75/27,224.10 = 11,342.25/x
  3. Step 3: Cross multiply
    19,725.75x = 27,224.10 × 11,342.25
  4. Step 4: Simplify right side
    19,725.75x = 308,782,548.23
  5. Step 5: Solve for x
    x = 308,782,548.23/19,725.75
  6. Step 6: Final answer
    x = 15,653.78

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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.