Home / 20,072.88-27,698.27-11,118.11

Finding the Fourth Proportional to 20,072.88, 27,698.27 and 11,118.11

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Solution

The fourth proportional to 20,072.88, 27,698.27 and 11,118.11 is: 15,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.88 : 27,698.27 = 11,118.11 : x
  2. Step 2: Convert to fraction form
    20,072.88/27,698.27 = 11,118.11/x
  3. Step 3: Cross multiply
    20,072.88x = 27,698.27 × 11,118.11
  4. Step 4: Simplify right side
    20,072.88x = 307,952,218.59
  5. Step 5: Solve for x
    x = 307,952,218.59/20,072.88
  6. Step 6: Final answer
    x = 15,341.71

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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.