Home / 30,921.90-46,351.69-12,194.70

Finding the Fourth Proportional to 30,921.90, 46,351.69 and 12,194.70

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Solution

The fourth proportional to 30,921.90, 46,351.69 and 12,194.70 is: 18,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,921.90 : 46,351.69 = 12,194.70 : x
  2. Step 2: Convert to fraction form
    30,921.90/46,351.69 = 12,194.70/x
  3. Step 3: Cross multiply
    30,921.90x = 46,351.69 × 12,194.70
  4. Step 4: Simplify right side
    30,921.90x = 565,245,079.06
  5. Step 5: Solve for x
    x = 565,245,079.06/30,921.90
  6. Step 6: Final answer
    x = 18,279.76

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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.