Home / 33,729.20-50,566.32-12,657.40

Finding the Fourth Proportional to 33,729.20, 50,566.32 and 12,657.40

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Solution

The fourth proportional to 33,729.20, 50,566.32 and 12,657.40 is: 18,975.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,729.20 : 50,566.32 = 12,657.40 : x
  2. Step 2: Convert to fraction form
    33,729.20/50,566.32 = 12,657.40/x
  3. Step 3: Cross multiply
    33,729.20x = 50,566.32 × 12,657.40
  4. Step 4: Simplify right side
    33,729.20x = 640,038,138.77
  5. Step 5: Solve for x
    x = 640,038,138.77/33,729.20
  6. Step 6: Final answer
    x = 18,975.79

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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.