Home / 19,283.43-28,929.60-8,190.48

Finding the Fourth Proportional to 19,283.43, 28,929.60 and 8,190.48

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Solution

The fourth proportional to 19,283.43, 28,929.60 and 8,190.48 is: 12,287.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,283.43 : 28,929.60 = 8,190.48 : x
  2. Step 2: Convert to fraction form
    19,283.43/28,929.60 = 8,190.48/x
  3. Step 3: Cross multiply
    19,283.43x = 28,929.60 × 8,190.48
  4. Step 4: Simplify right side
    19,283.43x = 236,947,310.21
  5. Step 5: Solve for x
    x = 236,947,310.21/19,283.43
  6. Step 6: Final answer
    x = 12,287.61

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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.