Home / 41,979.10-62,929.06-20,899.20

Finding the Fourth Proportional to 41,979.10, 62,929.06 and 20,899.20

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Solution

The fourth proportional to 41,979.10, 62,929.06 and 20,899.20 is: 31,329.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,979.10 : 62,929.06 = 20,899.20 : x
  2. Step 2: Convert to fraction form
    41,979.10/62,929.06 = 20,899.20/x
  3. Step 3: Cross multiply
    41,979.10x = 62,929.06 × 20,899.20
  4. Step 4: Simplify right side
    41,979.10x = 1,315,167,010.75
  5. Step 5: Solve for x
    x = 1,315,167,010.75/41,979.10
  6. Step 6: Final answer
    x = 31,329.09

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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.