Home / 20,224.20-27,909.48-11,731.36

Finding the Fourth Proportional to 20,224.20, 27,909.48 and 11,731.36

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Solution

The fourth proportional to 20,224.20, 27,909.48 and 11,731.36 is: 16,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.20 : 27,909.48 = 11,731.36 : x
  2. Step 2: Convert to fraction form
    20,224.20/27,909.48 = 11,731.36/x
  3. Step 3: Cross multiply
    20,224.20x = 27,909.48 × 11,731.36
  4. Step 4: Simplify right side
    20,224.20x = 327,416,157.29
  5. Step 5: Solve for x
    x = 327,416,157.29/20,224.20
  6. Step 6: Final answer
    x = 16,189.33

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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.