Home / 21,173.81-31,755.85-8,024.47

Finding the Fourth Proportional to 21,173.81, 31,755.85 and 8,024.47

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Solution

The fourth proportional to 21,173.81, 31,755.85 and 8,024.47 is: 12,034.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.81 : 31,755.85 = 8,024.47 : x
  2. Step 2: Convert to fraction form
    21,173.81/31,755.85 = 8,024.47/x
  3. Step 3: Cross multiply
    21,173.81x = 31,755.85 × 8,024.47
  4. Step 4: Simplify right side
    21,173.81x = 254,823,766.20
  5. Step 5: Solve for x
    x = 254,823,766.20/21,173.81
  6. Step 6: Final answer
    x = 12,034.86

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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.