Home / 19,790.80-29,706.66-13,262.61

Finding the Fourth Proportional to 19,790.80, 29,706.66 and 13,262.61

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Solution

The fourth proportional to 19,790.80, 29,706.66 and 13,262.61 is: 19,907.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.80 : 29,706.66 = 13,262.61 : x
  2. Step 2: Convert to fraction form
    19,790.80/29,706.66 = 13,262.61/x
  3. Step 3: Cross multiply
    19,790.80x = 29,706.66 × 13,262.61
  4. Step 4: Simplify right side
    19,790.80x = 393,987,845.98
  5. Step 5: Solve for x
    x = 393,987,845.98/19,790.80
  6. Step 6: Final answer
    x = 19,907.63

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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.