Home / 20,183.06-27,856.20-11,683.76

Finding the Fourth Proportional to 20,183.06, 27,856.20 and 11,683.76

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Solution

The fourth proportional to 20,183.06, 27,856.20 and 11,683.76 is: 16,125.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.06 : 27,856.20 = 11,683.76 : x
  2. Step 2: Convert to fraction form
    20,183.06/27,856.20 = 11,683.76/x
  3. Step 3: Cross multiply
    20,183.06x = 27,856.20 × 11,683.76
  4. Step 4: Simplify right side
    20,183.06x = 325,465,155.31
  5. Step 5: Solve for x
    x = 325,465,155.31/20,183.06
  6. Step 6: Final answer
    x = 16,125.66

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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.