Home / 30,279.99-45,422.25-8,092.86

Finding the Fourth Proportional to 30,279.99, 45,422.25 and 8,092.86

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Solution

The fourth proportional to 30,279.99, 45,422.25 and 8,092.86 is: 12,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.99 : 45,422.25 = 8,092.86 : x
  2. Step 2: Convert to fraction form
    30,279.99/45,422.25 = 8,092.86/x
  3. Step 3: Cross multiply
    30,279.99x = 45,422.25 × 8,092.86
  4. Step 4: Simplify right side
    30,279.99x = 367,595,910.14
  5. Step 5: Solve for x
    x = 367,595,910.14/30,279.99
  6. Step 6: Final answer
    x = 12,139.90

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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.