Home / 30,945.20-46,433.16-12,238.66

Finding the Fourth Proportional to 30,945.20, 46,433.16 and 12,238.66

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Solution

The fourth proportional to 30,945.20, 46,433.16 and 12,238.66 is: 18,364.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945.20 : 46,433.16 = 12,238.66 : x
  2. Step 2: Convert to fraction form
    30,945.20/46,433.16 = 12,238.66/x
  3. Step 3: Cross multiply
    30,945.20x = 46,433.16 × 12,238.66
  4. Step 4: Simplify right side
    30,945.20x = 568,279,364.61
  5. Step 5: Solve for x
    x = 568,279,364.61/30,945.20
  6. Step 6: Final answer
    x = 18,364.06

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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.