Home / 20,027.30-27,636.57-11,074.27

Finding the Fourth Proportional to 20,027.30, 27,636.57 and 11,074.27

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Solution

The fourth proportional to 20,027.30, 27,636.57 and 11,074.27 is: 15,281.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,027.30 : 27,636.57 = 11,074.27 : x
  2. Step 2: Convert to fraction form
    20,027.30/27,636.57 = 11,074.27/x
  3. Step 3: Cross multiply
    20,027.30x = 27,636.57 × 11,074.27
  4. Step 4: Simplify right side
    20,027.30x = 306,054,782.68
  5. Step 5: Solve for x
    x = 306,054,782.68/20,027.30
  6. Step 6: Final answer
    x = 15,281.88

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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.