Home / 21,453.66-32,164.02-8,126.46

Finding the Fourth Proportional to 21,453.66, 32,164.02 and 8,126.46

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Solution

The fourth proportional to 21,453.66, 32,164.02 and 8,126.46 is: 12,183.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.66 : 32,164.02 = 8,126.46 : x
  2. Step 2: Convert to fraction form
    21,453.66/32,164.02 = 8,126.46/x
  3. Step 3: Cross multiply
    21,453.66x = 32,164.02 × 8,126.46
  4. Step 4: Simplify right side
    21,453.66x = 261,379,621.97
  5. Step 5: Solve for x
    x = 261,379,621.97/21,453.66
  6. Step 6: Final answer
    x = 12,183.45

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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.