Home / 20,192.60-30,293.94-19,857.76

Finding the Fourth Proportional to 20,192.60, 30,293.94 and 19,857.76

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Solution

The fourth proportional to 20,192.60, 30,293.94 and 19,857.76 is: 29,791.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.60 : 30,293.94 = 19,857.76 : x
  2. Step 2: Convert to fraction form
    20,192.60/30,293.94 = 19,857.76/x
  3. Step 3: Cross multiply
    20,192.60x = 30,293.94 × 19,857.76
  4. Step 4: Simplify right side
    20,192.60x = 601,569,789.97
  5. Step 5: Solve for x
    x = 601,569,789.97/20,192.60
  6. Step 6: Final answer
    x = 29,791.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.