Home / 21,183.98-31,776.17-6,393.02

Finding the Fourth Proportional to 21,183.98, 31,776.17 and 6,393.02

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Solution

The fourth proportional to 21,183.98, 31,776.17 and 6,393.02 is: 9,589.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.98 : 31,776.17 = 6,393.02 : x
  2. Step 2: Convert to fraction form
    21,183.98/31,776.17 = 6,393.02/x
  3. Step 3: Cross multiply
    21,183.98x = 31,776.17 × 6,393.02
  4. Step 4: Simplify right side
    21,183.98x = 203,145,499.49
  5. Step 5: Solve for x
    x = 203,145,499.49/21,183.98
  6. Step 6: Final answer
    x = 9,589.58

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Double scale
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Similar ratio
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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.