Home / 28,736.91-43,110.66-12,942.31

Finding the Fourth Proportional to 28,736.91, 43,110.66 and 12,942.31

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Solution

The fourth proportional to 28,736.91, 43,110.66 and 12,942.31 is: 19,415.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.91 : 43,110.66 = 12,942.31 : x
  2. Step 2: Convert to fraction form
    28,736.91/43,110.66 = 12,942.31/x
  3. Step 3: Cross multiply
    28,736.91x = 43,110.66 × 12,942.31
  4. Step 4: Simplify right side
    28,736.91x = 557,951,526.02
  5. Step 5: Solve for x
    x = 557,951,526.02/28,736.91
  6. Step 6: Final answer
    x = 19,415.85

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1.5x scale

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.