Home / 20,377.68-30,550.32-11,616.72

Finding the Fourth Proportional to 20,377.68, 30,550.32 and 11,616.72

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Solution

The fourth proportional to 20,377.68, 30,550.32 and 11,616.72 is: 17,415.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377.68 : 30,550.32 = 11,616.72 : x
  2. Step 2: Convert to fraction form
    20,377.68/30,550.32 = 11,616.72/x
  3. Step 3: Cross multiply
    20,377.68x = 30,550.32 × 11,616.72
  4. Step 4: Simplify right side
    20,377.68x = 354,894,513.35
  5. Step 5: Solve for x
    x = 354,894,513.35/20,377.68
  6. Step 6: Final answer
    x = 17,415.84

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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.