Home / 20,238.18-27,931.22-11,627.06

Finding the Fourth Proportional to 20,238.18, 27,931.22 and 11,627.06

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Solution

The fourth proportional to 20,238.18, 27,931.22 and 11,627.06 is: 16,046.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.18 : 27,931.22 = 11,627.06 : x
  2. Step 2: Convert to fraction form
    20,238.18/27,931.22 = 11,627.06/x
  3. Step 3: Cross multiply
    20,238.18x = 27,931.22 × 11,627.06
  4. Step 4: Simplify right side
    20,238.18x = 324,757,860.22
  5. Step 5: Solve for x
    x = 324,757,860.22/20,238.18
  6. Step 6: Final answer
    x = 16,046.79

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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.