Home / 20,305.69-30,464.61-8,619.82

Finding the Fourth Proportional to 20,305.69, 30,464.61 and 8,619.82

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Solution

The fourth proportional to 20,305.69, 30,464.61 and 8,619.82 is: 12,932.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,305.69 : 30,464.61 = 8,619.82 : x
  2. Step 2: Convert to fraction form
    20,305.69/30,464.61 = 8,619.82/x
  3. Step 3: Cross multiply
    20,305.69x = 30,464.61 × 8,619.82
  4. Step 4: Simplify right side
    20,305.69x = 262,599,346.08
  5. Step 5: Solve for x
    x = 262,599,346.08/20,305.69
  6. Step 6: Final answer
    x = 12,932.31

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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.