Home / 30,103.38-41,542.20-16,491.32

Finding the Fourth Proportional to 30,103.38, 41,542.20 and 16,491.32

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Solution

The fourth proportional to 30,103.38, 41,542.20 and 16,491.32 is: 22,757.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.38 : 41,542.20 = 16,491.32 : x
  2. Step 2: Convert to fraction form
    30,103.38/41,542.20 = 16,491.32/x
  3. Step 3: Cross multiply
    30,103.38x = 41,542.20 × 16,491.32
  4. Step 4: Simplify right side
    30,103.38x = 685,085,713.70
  5. Step 5: Solve for x
    x = 685,085,713.70/30,103.38
  6. Step 6: Final answer
    x = 22,757.77

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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.