Home / 20,004.14-30,006.48-18,786.44

Finding the Fourth Proportional to 20,004.14, 30,006.48 and 18,786.44

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Solution

The fourth proportional to 20,004.14, 30,006.48 and 18,786.44 is: 28,179.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.14 : 30,006.48 = 18,786.44 : x
  2. Step 2: Convert to fraction form
    20,004.14/30,006.48 = 18,786.44/x
  3. Step 3: Cross multiply
    20,004.14x = 30,006.48 × 18,786.44
  4. Step 4: Simplify right side
    20,004.14x = 563,714,936.13
  5. Step 5: Solve for x
    x = 563,714,936.13/20,004.14
  6. Step 6: Final answer
    x = 28,179.91

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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.