Home / 20,217.84-27,900.25-11,265.15

Finding the Fourth Proportional to 20,217.84, 27,900.25 and 11,265.15

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Solution

The fourth proportional to 20,217.84, 27,900.25 and 11,265.15 is: 15,545.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.84 : 27,900.25 = 11,265.15 : x
  2. Step 2: Convert to fraction form
    20,217.84/27,900.25 = 11,265.15/x
  3. Step 3: Cross multiply
    20,217.84x = 27,900.25 × 11,265.15
  4. Step 4: Simplify right side
    20,217.84x = 314,300,571.04
  5. Step 5: Solve for x
    x = 314,300,571.04/20,217.84
  6. Step 6: Final answer
    x = 15,545.70

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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.