Home / 20,186.32-27,856.74-11,233.66

Finding the Fourth Proportional to 20,186.32, 27,856.74 and 11,233.66

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Solution

The fourth proportional to 20,186.32, 27,856.74 and 11,233.66 is: 15,502.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.32 : 27,856.74 = 11,233.66 : x
  2. Step 2: Convert to fraction form
    20,186.32/27,856.74 = 11,233.66/x
  3. Step 3: Cross multiply
    20,186.32x = 27,856.74 × 11,233.66
  4. Step 4: Simplify right side
    20,186.32x = 312,933,145.87
  5. Step 5: Solve for x
    x = 312,933,145.87/20,186.32
  6. Step 6: Final answer
    x = 15,502.24

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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.