Home / 19,704.20-29,530.65-8,003.75

Finding the Fourth Proportional to 19,704.20, 29,530.65 and 8,003.75

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Solution

The fourth proportional to 19,704.20, 29,530.65 and 8,003.75 is: 11,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,704.20 : 29,530.65 = 8,003.75 : x
  2. Step 2: Convert to fraction form
    19,704.20/29,530.65 = 8,003.75/x
  3. Step 3: Cross multiply
    19,704.20x = 29,530.65 × 8,003.75
  4. Step 4: Simplify right side
    19,704.20x = 236,355,939.94
  5. Step 5: Solve for x
    x = 236,355,939.94/19,704.20
  6. Step 6: Final answer
    x = 11,995.21

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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.