Home / 20,027.20-27,637.24-11,074.51

Finding the Fourth Proportional to 20,027.20, 27,637.24 and 11,074.51

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Solution

The fourth proportional to 20,027.20, 27,637.24 and 11,074.51 is: 15,282.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,027.20 : 27,637.24 = 11,074.51 : x
  2. Step 2: Convert to fraction form
    20,027.20/27,637.24 = 11,074.51/x
  3. Step 3: Cross multiply
    20,027.20x = 27,637.24 × 11,074.51
  4. Step 4: Simplify right side
    20,027.20x = 306,068,890.75
  5. Step 5: Solve for x
    x = 306,068,890.75/20,027.20
  6. Step 6: Final answer
    x = 15,282.66

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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.