Home / 36,689.20-55,021.90-11,723.38

Finding the Fourth Proportional to 36,689.20, 55,021.90 and 11,723.38

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Solution

The fourth proportional to 36,689.20, 55,021.90 and 11,723.38 is: 17,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,689.20 : 55,021.90 = 11,723.38 : x
  2. Step 2: Convert to fraction form
    36,689.20/55,021.90 = 11,723.38/x
  3. Step 3: Cross multiply
    36,689.20x = 55,021.90 × 11,723.38
  4. Step 4: Simplify right side
    36,689.20x = 645,042,642.02
  5. Step 5: Solve for x
    x = 645,042,642.02/36,689.20
  6. Step 6: Final answer
    x = 17,581.27

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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.