Home / 28,789.92-43,170.12-13,194

Finding the Fourth Proportional to 28,789.92, 43,170.12 and 13,194

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Solution

The fourth proportional to 28,789.92, 43,170.12 and 13,194 is: 19,784.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.92 : 43,170.12 = 13,194 : x
  2. Step 2: Convert to fraction form
    28,789.92/43,170.12 = 13,194/x
  3. Step 3: Cross multiply
    28,789.92x = 43,170.12 × 13,194
  4. Step 4: Simplify right side
    28,789.92x = 569,586,563.28
  5. Step 5: Solve for x
    x = 569,586,563.28/28,789.92
  6. Step 6: Final answer
    x = 19,784.24

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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.