Home / 41,309.20-61,920.48-20,220.16

Finding the Fourth Proportional to 41,309.20, 61,920.48 and 20,220.16

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Solution

The fourth proportional to 41,309.20, 61,920.48 and 20,220.16 is: 30,309.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,309.20 : 61,920.48 = 20,220.16 : x
  2. Step 2: Convert to fraction form
    41,309.20/61,920.48 = 20,220.16/x
  3. Step 3: Cross multiply
    41,309.20x = 61,920.48 × 20,220.16
  4. Step 4: Simplify right side
    41,309.20x = 1,252,042,012.88
  5. Step 5: Solve for x
    x = 1,252,042,012.88/41,309.20
  6. Step 6: Final answer
    x = 30,309.04

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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.