Home / 20,217.66-27,899.53-11,265

Finding the Fourth Proportional to 20,217.66, 27,899.53 and 11,265

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Solution

The fourth proportional to 20,217.66, 27,899.53 and 11,265 is: 15,545.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.66 : 27,899.53 = 11,265 : x
  2. Step 2: Convert to fraction form
    20,217.66/27,899.53 = 11,265/x
  3. Step 3: Cross multiply
    20,217.66x = 27,899.53 × 11,265
  4. Step 4: Simplify right side
    20,217.66x = 314,288,205.45
  5. Step 5: Solve for x
    x = 314,288,205.45/20,217.66
  6. Step 6: Final answer
    x = 15,545.23

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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.