Home / 28,736.15-43,107.30-12,099.92

Finding the Fourth Proportional to 28,736.15, 43,107.30 and 12,099.92

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Solution

The fourth proportional to 28,736.15, 43,107.30 and 12,099.92 is: 18,151.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.15 : 43,107.30 = 12,099.92 : x
  2. Step 2: Convert to fraction form
    28,736.15/43,107.30 = 12,099.92/x
  3. Step 3: Cross multiply
    28,736.15x = 43,107.30 × 12,099.92
  4. Step 4: Simplify right side
    28,736.15x = 521,594,665.88
  5. Step 5: Solve for x
    x = 521,594,665.88/28,736.15
  6. Step 6: Final answer
    x = 18,151.17

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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.