Home / 20,348.62-30,501.77-8,508.85

Finding the Fourth Proportional to 20,348.62, 30,501.77 and 8,508.85

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Solution

The fourth proportional to 20,348.62, 30,501.77 and 8,508.85 is: 12,754.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.62 : 30,501.77 = 8,508.85 : x
  2. Step 2: Convert to fraction form
    20,348.62/30,501.77 = 8,508.85/x
  3. Step 3: Cross multiply
    20,348.62x = 30,501.77 × 8,508.85
  4. Step 4: Simplify right side
    20,348.62x = 259,534,866.87
  5. Step 5: Solve for x
    x = 259,534,866.87/20,348.62
  6. Step 6: Final answer
    x = 12,754.42

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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.