Home / 20,384.76-30,581.46-6,543.48

Finding the Fourth Proportional to 20,384.76, 30,581.46 and 6,543.48

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Solution

The fourth proportional to 20,384.76, 30,581.46 and 6,543.48 is: 9,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384.76 : 30,581.46 = 6,543.48 : x
  2. Step 2: Convert to fraction form
    20,384.76/30,581.46 = 6,543.48/x
  3. Step 3: Cross multiply
    20,384.76x = 30,581.46 × 6,543.48
  4. Step 4: Simplify right side
    20,384.76x = 200,109,171.88
  5. Step 5: Solve for x
    x = 200,109,171.88/20,384.76
  6. Step 6: Final answer
    x = 9,816.61

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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.