Home / 20,257.92-27,955.20-11,754.72

Finding the Fourth Proportional to 20,257.92, 27,955.20 and 11,754.72

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Solution

The fourth proportional to 20,257.92, 27,955.20 and 11,754.72 is: 16,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.92 : 27,955.20 = 11,754.72 : x
  2. Step 2: Convert to fraction form
    20,257.92/27,955.20 = 11,754.72/x
  3. Step 3: Cross multiply
    20,257.92x = 27,955.20 × 11,754.72
  4. Step 4: Simplify right side
    20,257.92x = 328,605,548.54
  5. Step 5: Solve for x
    x = 328,605,548.54/20,257.92
  6. Step 6: Final answer
    x = 16,221.09

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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.