Home / 20,264.24-27,961.62-11,311.94

Finding the Fourth Proportional to 20,264.24, 27,961.62 and 11,311.94

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Solution

The fourth proportional to 20,264.24, 27,961.62 and 11,311.94 is: 15,608.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.24 : 27,961.62 = 11,311.94 : x
  2. Step 2: Convert to fraction form
    20,264.24/27,961.62 = 11,311.94/x
  3. Step 3: Cross multiply
    20,264.24x = 27,961.62 × 11,311.94
  4. Step 4: Simplify right side
    20,264.24x = 316,300,167.74
  5. Step 5: Solve for x
    x = 316,300,167.74/20,264.24
  6. Step 6: Final answer
    x = 15,608.79

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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.