Home / 20,463.92-30,696.30-6,423.66

Finding the Fourth Proportional to 20,463.92, 30,696.30 and 6,423.66

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Solution

The fourth proportional to 20,463.92, 30,696.30 and 6,423.66 is: 9,635.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463.92 : 30,696.30 = 6,423.66 : x
  2. Step 2: Convert to fraction form
    20,463.92/30,696.30 = 6,423.66/x
  3. Step 3: Cross multiply
    20,463.92x = 30,696.30 × 6,423.66
  4. Step 4: Simplify right side
    20,463.92x = 197,182,594.46
  5. Step 5: Solve for x
    x = 197,182,594.46/20,463.92
  6. Step 6: Final answer
    x = 9,635.62

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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.