Home / 20,119.64-30,172.17-9,020.62

Finding the Fourth Proportional to 20,119.64, 30,172.17 and 9,020.62

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Solution

The fourth proportional to 20,119.64, 30,172.17 and 9,020.62 is: 13,527.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.64 : 30,172.17 = 9,020.62 : x
  2. Step 2: Convert to fraction form
    20,119.64/30,172.17 = 9,020.62/x
  3. Step 3: Cross multiply
    20,119.64x = 30,172.17 × 9,020.62
  4. Step 4: Simplify right side
    20,119.64x = 272,171,556.60
  5. Step 5: Solve for x
    x = 272,171,556.60/20,119.64
  6. Step 6: Final answer
    x = 13,527.65

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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.