Home / 20,227.87-27,915.42-11,275.44

Finding the Fourth Proportional to 20,227.87, 27,915.42 and 11,275.44

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Solution

The fourth proportional to 20,227.87, 27,915.42 and 11,275.44 is: 15,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.87 : 27,915.42 = 11,275.44 : x
  2. Step 2: Convert to fraction form
    20,227.87/27,915.42 = 11,275.44/x
  3. Step 3: Cross multiply
    20,227.87x = 27,915.42 × 11,275.44
  4. Step 4: Simplify right side
    20,227.87x = 314,758,643.28
  5. Step 5: Solve for x
    x = 314,758,643.28/20,227.87
  6. Step 6: Final answer
    x = 15,560.64

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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.