Home / 20,263.82-27,963.99-11,311.25

Finding the Fourth Proportional to 20,263.82, 27,963.99 and 11,311.25

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Solution

The fourth proportional to 20,263.82, 27,963.99 and 11,311.25 is: 15,609.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.82 : 27,963.99 = 11,311.25 : x
  2. Step 2: Convert to fraction form
    20,263.82/27,963.99 = 11,311.25/x
  3. Step 3: Cross multiply
    20,263.82x = 27,963.99 × 11,311.25
  4. Step 4: Simplify right side
    20,263.82x = 316,307,542.07
  5. Step 5: Solve for x
    x = 316,307,542.07/20,263.82
  6. Step 6: Final answer
    x = 15,609.48

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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.