Home / 20,117.62-30,169.57-6,966.91

Finding the Fourth Proportional to 20,117.62, 30,169.57 and 6,966.91

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Solution

The fourth proportional to 20,117.62, 30,169.57 and 6,966.91 is: 10,447.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.62 : 30,169.57 = 6,966.91 : x
  2. Step 2: Convert to fraction form
    20,117.62/30,169.57 = 6,966.91/x
  3. Step 3: Cross multiply
    20,117.62x = 30,169.57 × 6,966.91
  4. Step 4: Simplify right side
    20,117.62x = 210,188,678.93
  5. Step 5: Solve for x
    x = 210,188,678.93/20,117.62
  6. Step 6: Final answer
    x = 10,447.99

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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.