Home / 20,120.20-30,180.15-6,080.20

Finding the Fourth Proportional to 20,120.20, 30,180.15 and 6,080.20

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Solution

The fourth proportional to 20,120.20, 30,180.15 and 6,080.20 is: 9,120.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120.20 : 30,180.15 = 6,080.20 : x
  2. Step 2: Convert to fraction form
    20,120.20/30,180.15 = 6,080.20/x
  3. Step 3: Cross multiply
    20,120.20x = 30,180.15 × 6,080.20
  4. Step 4: Simplify right side
    20,120.20x = 183,501,348.03
  5. Step 5: Solve for x
    x = 183,501,348.03/20,120.20
  6. Step 6: Final answer
    x = 9,120.25

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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.