Home / 19,156.43-28,736.70-8,065.61

Finding the Fourth Proportional to 19,156.43, 28,736.70 and 8,065.61

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Solution

The fourth proportional to 19,156.43, 28,736.70 and 8,065.61 is: 12,099.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.43 : 28,736.70 = 8,065.61 : x
  2. Step 2: Convert to fraction form
    19,156.43/28,736.70 = 8,065.61/x
  3. Step 3: Cross multiply
    19,156.43x = 28,736.70 × 8,065.61
  4. Step 4: Simplify right side
    19,156.43x = 231,778,871.20
  5. Step 5: Solve for x
    x = 231,778,871.20/19,156.43
  6. Step 6: Final answer
    x = 12,099.28

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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.