Home / 20,200.49-30,305.32-6,161.77

Finding the Fourth Proportional to 20,200.49, 30,305.32 and 6,161.77

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Solution

The fourth proportional to 20,200.49, 30,305.32 and 6,161.77 is: 9,244.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.49 : 30,305.32 = 6,161.77 : x
  2. Step 2: Convert to fraction form
    20,200.49/30,305.32 = 6,161.77/x
  3. Step 3: Cross multiply
    20,200.49x = 30,305.32 × 6,161.77
  4. Step 4: Simplify right side
    20,200.49x = 186,734,320.45
  5. Step 5: Solve for x
    x = 186,734,320.45/20,200.49
  6. Step 6: Final answer
    x = 9,244.05

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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.