Home / 19,406.90-29,104.20-8,310.61

Finding the Fourth Proportional to 19,406.90, 29,104.20 and 8,310.61

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Solution

The fourth proportional to 19,406.90, 29,104.20 and 8,310.61 is: 12,463.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406.90 : 29,104.20 = 8,310.61 : x
  2. Step 2: Convert to fraction form
    19,406.90/29,104.20 = 8,310.61/x
  3. Step 3: Cross multiply
    19,406.90x = 29,104.20 × 8,310.61
  4. Step 4: Simplify right side
    19,406.90x = 241,873,655.56
  5. Step 5: Solve for x
    x = 241,873,655.56/19,406.90
  6. Step 6: Final answer
    x = 12,463.28

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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.