Home / 20,110.56-27,751.24-11,157.76

Finding the Fourth Proportional to 20,110.56, 27,751.24 and 11,157.76

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Solution

The fourth proportional to 20,110.56, 27,751.24 and 11,157.76 is: 15,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.56 : 27,751.24 = 11,157.76 : x
  2. Step 2: Convert to fraction form
    20,110.56/27,751.24 = 11,157.76/x
  3. Step 3: Cross multiply
    20,110.56x = 27,751.24 × 11,157.76
  4. Step 4: Simplify right side
    20,110.56x = 309,641,675.62
  5. Step 5: Solve for x
    x = 309,641,675.62/20,110.56
  6. Step 6: Final answer
    x = 15,396.97

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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.