Home / 20,183.76-27,856.05-12,225.96

Finding the Fourth Proportional to 20,183.76, 27,856.05 and 12,225.96

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Solution

The fourth proportional to 20,183.76, 27,856.05 and 12,225.96 is: 16,873.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.76 : 27,856.05 = 12,225.96 : x
  2. Step 2: Convert to fraction form
    20,183.76/27,856.05 = 12,225.96/x
  3. Step 3: Cross multiply
    20,183.76x = 27,856.05 × 12,225.96
  4. Step 4: Simplify right side
    20,183.76x = 340,566,953.06
  5. Step 5: Solve for x
    x = 340,566,953.06/20,183.76
  6. Step 6: Final answer
    x = 16,873.32

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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.