Home / 19,512.78-29,270.48-6,861.02

Finding the Fourth Proportional to 19,512.78, 29,270.48 and 6,861.02

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Solution

The fourth proportional to 19,512.78, 29,270.48 and 6,861.02 is: 10,291.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,512.78 : 29,270.48 = 6,861.02 : x
  2. Step 2: Convert to fraction form
    19,512.78/29,270.48 = 6,861.02/x
  3. Step 3: Cross multiply
    19,512.78x = 29,270.48 × 6,861.02
  4. Step 4: Simplify right side
    19,512.78x = 200,825,277.80
  5. Step 5: Solve for x
    x = 200,825,277.80/19,512.78
  6. Step 6: Final answer
    x = 10,291.99

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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.