Home / 20,007.26-30,002.58-7,520.84

Finding the Fourth Proportional to 20,007.26, 30,002.58 and 7,520.84

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Solution

The fourth proportional to 20,007.26, 30,002.58 and 7,520.84 is: 11,278.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.26 : 30,002.58 = 7,520.84 : x
  2. Step 2: Convert to fraction form
    20,007.26/30,002.58 = 7,520.84/x
  3. Step 3: Cross multiply
    20,007.26x = 30,002.58 × 7,520.84
  4. Step 4: Simplify right side
    20,007.26x = 225,644,453.75
  5. Step 5: Solve for x
    x = 225,644,453.75/20,007.26
  6. Step 6: Final answer
    x = 11,278.13

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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.