Home / 19,851.64-29,789.13-7,380.43

Finding the Fourth Proportional to 19,851.64, 29,789.13 and 7,380.43

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Solution

The fourth proportional to 19,851.64, 29,789.13 and 7,380.43 is: 11,074.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.64 : 29,789.13 = 7,380.43 : x
  2. Step 2: Convert to fraction form
    19,851.64/29,789.13 = 7,380.43/x
  3. Step 3: Cross multiply
    19,851.64x = 29,789.13 × 7,380.43
  4. Step 4: Simplify right side
    19,851.64x = 219,856,588.73
  5. Step 5: Solve for x
    x = 219,856,588.73/19,851.64
  6. Step 6: Final answer
    x = 11,074.98

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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.