Home / 20,217.87-27,899.86-11,265.14

Finding the Fourth Proportional to 20,217.87, 27,899.86 and 11,265.14

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Solution

The fourth proportional to 20,217.87, 27,899.86 and 11,265.14 is: 15,545.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.87 : 27,899.86 = 11,265.14 : x
  2. Step 2: Convert to fraction form
    20,217.87/27,899.86 = 11,265.14/x
  3. Step 3: Cross multiply
    20,217.87x = 27,899.86 × 11,265.14
  4. Step 4: Simplify right side
    20,217.87x = 314,295,633.06
  5. Step 5: Solve for x
    x = 314,295,633.06/20,217.87
  6. Step 6: Final answer
    x = 15,545.44

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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.