Home / 28,790.92-43,171.62-13,195

Finding the Fourth Proportional to 28,790.92, 43,171.62 and 13,195

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Solution

The fourth proportional to 28,790.92, 43,171.62 and 13,195 is: 19,785.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.92 : 43,171.62 = 13,195 : x
  2. Step 2: Convert to fraction form
    28,790.92/43,171.62 = 13,195/x
  3. Step 3: Cross multiply
    28,790.92x = 43,171.62 × 13,195
  4. Step 4: Simplify right side
    28,790.92x = 569,649,525.90
  5. Step 5: Solve for x
    x = 569,649,525.90/28,790.92
  6. Step 6: Final answer
    x = 19,785.74

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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.