Home / 20,304.99-30,443.62-10,818.73

Finding the Fourth Proportional to 20,304.99, 30,443.62 and 10,818.73

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Solution

The fourth proportional to 20,304.99, 30,443.62 and 10,818.73 is: 16,220.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.99 : 30,443.62 = 10,818.73 : x
  2. Step 2: Convert to fraction form
    20,304.99/30,443.62 = 10,818.73/x
  3. Step 3: Cross multiply
    20,304.99x = 30,443.62 × 10,818.73
  4. Step 4: Simplify right side
    20,304.99x = 329,361,305.00
  5. Step 5: Solve for x
    x = 329,361,305.00/20,304.99
  6. Step 6: Final answer
    x = 16,220.71

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Double scale
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1.5x scale

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.