Home / 20,856.38-31,284.66-6,065.36

Finding the Fourth Proportional to 20,856.38, 31,284.66 and 6,065.36

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Solution

The fourth proportional to 20,856.38, 31,284.66 and 6,065.36 is: 9,098.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856.38 : 31,284.66 = 6,065.36 : x
  2. Step 2: Convert to fraction form
    20,856.38/31,284.66 = 6,065.36/x
  3. Step 3: Cross multiply
    20,856.38x = 31,284.66 × 6,065.36
  4. Step 4: Simplify right side
    20,856.38x = 189,752,725.38
  5. Step 5: Solve for x
    x = 189,752,725.38/20,856.38
  6. Step 6: Final answer
    x = 9,098.07

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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.