Home / 20,116.20-30,174.12-6,076.20

Finding the Fourth Proportional to 20,116.20, 30,174.12 and 6,076.20

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Solution

The fourth proportional to 20,116.20, 30,174.12 and 6,076.20 is: 9,114.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.20 : 30,174.12 = 6,076.20 : x
  2. Step 2: Convert to fraction form
    20,116.20/30,174.12 = 6,076.20/x
  3. Step 3: Cross multiply
    20,116.20x = 30,174.12 × 6,076.20
  4. Step 4: Simplify right side
    20,116.20x = 183,343,987.94
  5. Step 5: Solve for x
    x = 183,343,987.94/20,116.20
  6. Step 6: Final answer
    x = 9,114.25

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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.