Home / 30,650.35-45,993.22-12,879.61

Finding the Fourth Proportional to 30,650.35, 45,993.22 and 12,879.61

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Solution

The fourth proportional to 30,650.35, 45,993.22 and 12,879.61 is: 19,326.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,650.35 : 45,993.22 = 12,879.61 : x
  2. Step 2: Convert to fraction form
    30,650.35/45,993.22 = 12,879.61/x
  3. Step 3: Cross multiply
    30,650.35x = 45,993.22 × 12,879.61
  4. Step 4: Simplify right side
    30,650.35x = 592,374,589.06
  5. Step 5: Solve for x
    x = 592,374,589.06/30,650.35
  6. Step 6: Final answer
    x = 19,326.85

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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.