Home / 20,332,321.69-28,057,816.97-11,039,679.07

Finding the Fourth Proportional to 20,332,321.69, 28,057,816.97 and 11,039,679.07

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Solution

The fourth proportional to 20,332,321.69, 28,057,816.97 and 11,039,679.07 is: 15,234,329.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332,321.69 : 28,057,816.97 = 11,039,679.07 : x
  2. Step 2: Convert to fraction form
    20,332,321.69/28,057,816.97 = 11,039,679.07/x
  3. Step 3: Cross multiply
    20,332,321.69x = 28,057,816.97 × 11,039,679.07
  4. Step 4: Simplify right side
    20,332,321.69x = 309,749,294,811,336.38
  5. Step 5: Solve for x
    x = 309,749,294,811,336.38/20,332,321.69
  6. Step 6: Final answer
    x = 15,234,329.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.