Home / 20,185.56-27,856.44-11,110.86

Finding the Fourth Proportional to 20,185.56, 27,856.44 and 11,110.86

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Solution

The fourth proportional to 20,185.56, 27,856.44 and 11,110.86 is: 15,333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.56 : 27,856.44 = 11,110.86 : x
  2. Step 2: Convert to fraction form
    20,185.56/27,856.44 = 11,110.86/x
  3. Step 3: Cross multiply
    20,185.56x = 27,856.44 × 11,110.86
  4. Step 4: Simplify right side
    20,185.56x = 309,509,004.94
  5. Step 5: Solve for x
    x = 309,509,004.94/20,185.56
  6. Step 6: Final answer
    x = 15,333.19

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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.