Home / 20,151.96-27,811.74-11,769.24

Finding the Fourth Proportional to 20,151.96, 27,811.74 and 11,769.24

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Solution

The fourth proportional to 20,151.96, 27,811.74 and 11,769.24 is: 16,242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.96 : 27,811.74 = 11,769.24 : x
  2. Step 2: Convert to fraction form
    20,151.96/27,811.74 = 11,769.24/x
  3. Step 3: Cross multiply
    20,151.96x = 27,811.74 × 11,769.24
  4. Step 4: Simplify right side
    20,151.96x = 327,323,042.88
  5. Step 5: Solve for x
    x = 327,323,042.88/20,151.96
  6. Step 6: Final answer
    x = 16,242.74

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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.