Home / 19,449.20-29,169.70-8,361.11

Finding the Fourth Proportional to 19,449.20, 29,169.70 and 8,361.11

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Solution

The fourth proportional to 19,449.20, 29,169.70 and 8,361.11 is: 12,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,449.20 : 29,169.70 = 8,361.11 : x
  2. Step 2: Convert to fraction form
    19,449.20/29,169.70 = 8,361.11/x
  3. Step 3: Cross multiply
    19,449.20x = 29,169.70 × 8,361.11
  4. Step 4: Simplify right side
    19,449.20x = 243,891,070.37
  5. Step 5: Solve for x
    x = 243,891,070.37/19,449.20
  6. Step 6: Final answer
    x = 12,539.90

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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.