Home / 20,001.62-30,007.91-8,754.92

Finding the Fourth Proportional to 20,001.62, 30,007.91 and 8,754.92

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Solution

The fourth proportional to 20,001.62, 30,007.91 and 8,754.92 is: 13,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.62 : 30,007.91 = 8,754.92 : x
  2. Step 2: Convert to fraction form
    20,001.62/30,007.91 = 8,754.92/x
  3. Step 3: Cross multiply
    20,001.62x = 30,007.91 × 8,754.92
  4. Step 4: Simplify right side
    20,001.62x = 262,716,851.42
  5. Step 5: Solve for x
    x = 262,716,851.42/20,001.62
  6. Step 6: Final answer
    x = 13,134.78

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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.