Home / 20,217.59-27,899.99-11,265.47

Finding the Fourth Proportional to 20,217.59, 27,899.99 and 11,265.47

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Solution

The fourth proportional to 20,217.59, 27,899.99 and 11,265.47 is: 15,546.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.59 : 27,899.99 = 11,265.47 : x
  2. Step 2: Convert to fraction form
    20,217.59/27,899.99 = 11,265.47/x
  3. Step 3: Cross multiply
    20,217.59x = 27,899.99 × 11,265.47
  4. Step 4: Simplify right side
    20,217.59x = 314,306,304.52
  5. Step 5: Solve for x
    x = 314,306,304.52/20,217.59
  6. Step 6: Final answer
    x = 15,546.18

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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.