Home / 20,267.88-27,974.34-11,887.08

Finding the Fourth Proportional to 20,267.88, 27,974.34 and 11,887.08

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Solution

The fourth proportional to 20,267.88, 27,974.34 and 11,887.08 is: 16,406.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.88 : 27,974.34 = 11,887.08 : x
  2. Step 2: Convert to fraction form
    20,267.88/27,974.34 = 11,887.08/x
  3. Step 3: Cross multiply
    20,267.88x = 27,974.34 × 11,887.08
  4. Step 4: Simplify right side
    20,267.88x = 332,533,217.53
  5. Step 5: Solve for x
    x = 332,533,217.53/20,267.88
  6. Step 6: Final answer
    x = 16,406.91

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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.