Home / 20,205.45-27,883.04-11,252.72

Finding the Fourth Proportional to 20,205.45, 27,883.04 and 11,252.72

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Solution

The fourth proportional to 20,205.45, 27,883.04 and 11,252.72 is: 15,528.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.45 : 27,883.04 = 11,252.72 : x
  2. Step 2: Convert to fraction form
    20,205.45/27,883.04 = 11,252.72/x
  3. Step 3: Cross multiply
    20,205.45x = 27,883.04 × 11,252.72
  4. Step 4: Simplify right side
    20,205.45x = 313,760,055.31
  5. Step 5: Solve for x
    x = 313,760,055.31/20,205.45
  6. Step 6: Final answer
    x = 15,528.49

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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.