Home / 20,135.26-30,184.26-7,651.54

Finding the Fourth Proportional to 20,135.26, 30,184.26 and 7,651.54

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Solution

The fourth proportional to 20,135.26, 30,184.26 and 7,651.54 is: 11,470.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.26 : 30,184.26 = 7,651.54 : x
  2. Step 2: Convert to fraction form
    20,135.26/30,184.26 = 7,651.54/x
  3. Step 3: Cross multiply
    20,135.26x = 30,184.26 × 7,651.54
  4. Step 4: Simplify right side
    20,135.26x = 230,956,072.76
  5. Step 5: Solve for x
    x = 230,956,072.76/20,135.26
  6. Step 6: Final answer
    x = 11,470.23

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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.