Home / 20,305.65-30,448.82-11,874.57

Finding the Fourth Proportional to 20,305.65, 30,448.82 and 11,874.57

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Solution

The fourth proportional to 20,305.65, 30,448.82 and 11,874.57 is: 17,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,305.65 : 30,448.82 = 11,874.57 : x
  2. Step 2: Convert to fraction form
    20,305.65/30,448.82 = 11,874.57/x
  3. Step 3: Cross multiply
    20,305.65x = 30,448.82 × 11,874.57
  4. Step 4: Simplify right side
    20,305.65x = 361,566,560.01
  5. Step 5: Solve for x
    x = 361,566,560.01/20,305.65
  6. Step 6: Final answer
    x = 17,806.20

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1.5x scale

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.