Home / 20,189.08-27,861.32-11,236.96

Finding the Fourth Proportional to 20,189.08, 27,861.32 and 11,236.96

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Solution

The fourth proportional to 20,189.08, 27,861.32 and 11,236.96 is: 15,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.08 : 27,861.32 = 11,236.96 : x
  2. Step 2: Convert to fraction form
    20,189.08/27,861.32 = 11,236.96/x
  3. Step 3: Cross multiply
    20,189.08x = 27,861.32 × 11,236.96
  4. Step 4: Simplify right side
    20,189.08x = 313,076,538.39
  5. Step 5: Solve for x
    x = 313,076,538.39/20,189.08
  6. Step 6: Final answer
    x = 15,507.22

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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.