Home / 20,473.29-30,710.34-8,786.61

Finding the Fourth Proportional to 20,473.29, 30,710.34 and 8,786.61

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Solution

The fourth proportional to 20,473.29, 30,710.34 and 8,786.61 is: 13,180.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473.29 : 30,710.34 = 8,786.61 : x
  2. Step 2: Convert to fraction form
    20,473.29/30,710.34 = 8,786.61/x
  3. Step 3: Cross multiply
    20,473.29x = 30,710.34 × 8,786.61
  4. Step 4: Simplify right side
    20,473.29x = 269,839,780.55
  5. Step 5: Solve for x
    x = 269,839,780.55/20,473.29
  6. Step 6: Final answer
    x = 13,180.09

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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.