Home / 19,847.01-29,747.79-8,145.75

Finding the Fourth Proportional to 19,847.01, 29,747.79 and 8,145.75

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Solution

The fourth proportional to 19,847.01, 29,747.79 and 8,145.75 is: 12,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,847.01 : 29,747.79 = 8,145.75 : x
  2. Step 2: Convert to fraction form
    19,847.01/29,747.79 = 8,145.75/x
  3. Step 3: Cross multiply
    19,847.01x = 29,747.79 × 8,145.75
  4. Step 4: Simplify right side
    19,847.01x = 242,318,060.39
  5. Step 5: Solve for x
    x = 242,318,060.39/19,847.01
  6. Step 6: Final answer
    x = 12,209.30

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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.