Home / 20,120.28-30,168.66-6,076.10

Finding the Fourth Proportional to 20,120.28, 30,168.66 and 6,076.10

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Solution

The fourth proportional to 20,120.28, 30,168.66 and 6,076.10 is: 9,110.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120.28 : 30,168.66 = 6,076.10 : x
  2. Step 2: Convert to fraction form
    20,120.28/30,168.66 = 6,076.10/x
  3. Step 3: Cross multiply
    20,120.28x = 30,168.66 × 6,076.10
  4. Step 4: Simplify right side
    20,120.28x = 183,307,795.03
  5. Step 5: Solve for x
    x = 183,307,795.03/20,120.28
  6. Step 6: Final answer
    x = 9,110.60

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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.