Home / 20,074.28-30,096.54-12,178.60

Finding the Fourth Proportional to 20,074.28, 30,096.54 and 12,178.60

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Solution

The fourth proportional to 20,074.28, 30,096.54 and 12,178.60 is: 18,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.28 : 30,096.54 = 12,178.60 : x
  2. Step 2: Convert to fraction form
    20,074.28/30,096.54 = 12,178.60/x
  3. Step 3: Cross multiply
    20,074.28x = 30,096.54 × 12,178.60
  4. Step 4: Simplify right side
    20,074.28x = 366,533,722.04
  5. Step 5: Solve for x
    x = 366,533,722.04/20,074.28
  6. Step 6: Final answer
    x = 18,258.87

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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.