Home / 19,843.82-29,766.41-9,977.72

Finding the Fourth Proportional to 19,843.82, 29,766.41 and 9,977.72

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Solution

The fourth proportional to 19,843.82, 29,766.41 and 9,977.72 is: 14,966.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.82 : 29,766.41 = 9,977.72 : x
  2. Step 2: Convert to fraction form
    19,843.82/29,766.41 = 9,977.72/x
  3. Step 3: Cross multiply
    19,843.82x = 29,766.41 × 9,977.72
  4. Step 4: Simplify right side
    19,843.82x = 297,000,705.66
  5. Step 5: Solve for x
    x = 297,000,705.66/19,843.82
  6. Step 6: Final answer
    x = 14,966.92

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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.