Home / 19,414.80-29,076.48-12,824.64

Finding the Fourth Proportional to 19,414.80, 29,076.48 and 12,824.64

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Solution

The fourth proportional to 19,414.80, 29,076.48 and 12,824.64 is: 19,206.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,414.80 : 29,076.48 = 12,824.64 : x
  2. Step 2: Convert to fraction form
    19,414.80/29,076.48 = 12,824.64/x
  3. Step 3: Cross multiply
    19,414.80x = 29,076.48 × 12,824.64
  4. Step 4: Simplify right side
    19,414.80x = 372,895,388.47
  5. Step 5: Solve for x
    x = 372,895,388.47/19,414.80
  6. Step 6: Final answer
    x = 19,206.76

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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.