Home / 26,405.91-39,584.16-9,761.40

Finding the Fourth Proportional to 26,405.91, 39,584.16 and 9,761.40

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Solution

The fourth proportional to 26,405.91, 39,584.16 and 9,761.40 is: 14,632.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,405.91 : 39,584.16 = 9,761.40 : x
  2. Step 2: Convert to fraction form
    26,405.91/39,584.16 = 9,761.40/x
  3. Step 3: Cross multiply
    26,405.91x = 39,584.16 × 9,761.40
  4. Step 4: Simplify right side
    26,405.91x = 386,396,819.42
  5. Step 5: Solve for x
    x = 386,396,819.42/26,405.91
  6. Step 6: Final answer
    x = 14,632.97

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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.