Home / 19,936.86-29,907.90-6,785.70

Finding the Fourth Proportional to 19,936.86, 29,907.90 and 6,785.70

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Solution

The fourth proportional to 19,936.86, 29,907.90 and 6,785.70 is: 10,179.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936.86 : 29,907.90 = 6,785.70 : x
  2. Step 2: Convert to fraction form
    19,936.86/29,907.90 = 6,785.70/x
  3. Step 3: Cross multiply
    19,936.86x = 29,907.90 × 6,785.70
  4. Step 4: Simplify right side
    19,936.86x = 202,946,037.03
  5. Step 5: Solve for x
    x = 202,946,037.03/19,936.86
  6. Step 6: Final answer
    x = 10,179.44

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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.