Home / 20,217.92-27,900.09-11,264.85

Finding the Fourth Proportional to 20,217.92, 27,900.09 and 11,264.85

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Solution

The fourth proportional to 20,217.92, 27,900.09 and 11,264.85 is: 15,545.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.92 : 27,900.09 = 11,264.85 : x
  2. Step 2: Convert to fraction form
    20,217.92/27,900.09 = 11,264.85/x
  3. Step 3: Cross multiply
    20,217.92x = 27,900.09 × 11,264.85
  4. Step 4: Simplify right side
    20,217.92x = 314,290,328.84
  5. Step 5: Solve for x
    x = 314,290,328.84/20,217.92
  6. Step 6: Final answer
    x = 15,545.14

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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.