Home / 20,454.69-30,682.41-6,414.40

Finding the Fourth Proportional to 20,454.69, 30,682.41 and 6,414.40

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Solution

The fourth proportional to 20,454.69, 30,682.41 and 6,414.40 is: 9,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.69 : 30,682.41 = 6,414.40 : x
  2. Step 2: Convert to fraction form
    20,454.69/30,682.41 = 6,414.40/x
  3. Step 3: Cross multiply
    20,454.69x = 30,682.41 × 6,414.40
  4. Step 4: Simplify right side
    20,454.69x = 196,809,250.70
  5. Step 5: Solve for x
    x = 196,809,250.70/20,454.69
  6. Step 6: Final answer
    x = 9,621.72

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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.