Home / 18,620.02-27,939.14-8,760.30

Finding the Fourth Proportional to 18,620.02, 27,939.14 and 8,760.30

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Solution

The fourth proportional to 18,620.02, 27,939.14 and 8,760.30 is: 13,144.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620.02 : 27,939.14 = 8,760.30 : x
  2. Step 2: Convert to fraction form
    18,620.02/27,939.14 = 8,760.30/x
  3. Step 3: Cross multiply
    18,620.02x = 27,939.14 × 8,760.30
  4. Step 4: Simplify right side
    18,620.02x = 244,755,248.14
  5. Step 5: Solve for x
    x = 244,755,248.14/18,620.02
  6. Step 6: Final answer
    x = 13,144.74

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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.