Home / 20,133.38-30,195.92-6,981.32

Finding the Fourth Proportional to 20,133.38, 30,195.92 and 6,981.32

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Solution

The fourth proportional to 20,133.38, 30,195.92 and 6,981.32 is: 10,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.38 : 30,195.92 = 6,981.32 : x
  2. Step 2: Convert to fraction form
    20,133.38/30,195.92 = 6,981.32/x
  3. Step 3: Cross multiply
    20,133.38x = 30,195.92 × 6,981.32
  4. Step 4: Simplify right side
    20,133.38x = 210,807,380.21
  5. Step 5: Solve for x
    x = 210,807,380.21/20,133.38
  6. Step 6: Final answer
    x = 10,470.54

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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.