Home / 20,288.42-27,997.02-11,334.14

Finding the Fourth Proportional to 20,288.42, 27,997.02 and 11,334.14

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Solution

The fourth proportional to 20,288.42, 27,997.02 and 11,334.14 is: 15,640.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.42 : 27,997.02 = 11,334.14 : x
  2. Step 2: Convert to fraction form
    20,288.42/27,997.02 = 11,334.14/x
  3. Step 3: Cross multiply
    20,288.42x = 27,997.02 × 11,334.14
  4. Step 4: Simplify right side
    20,288.42x = 317,322,144.26
  5. Step 5: Solve for x
    x = 317,322,144.26/20,288.42
  6. Step 6: Final answer
    x = 15,640.55

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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.