Home / 20,464.20-30,696.38-5,674.28

Finding the Fourth Proportional to 20,464.20, 30,696.38 and 5,674.28

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Solution

The fourth proportional to 20,464.20, 30,696.38 and 5,674.28 is: 8,511.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464.20 : 30,696.38 = 5,674.28 : x
  2. Step 2: Convert to fraction form
    20,464.20/30,696.38 = 5,674.28/x
  3. Step 3: Cross multiply
    20,464.20x = 30,696.38 × 5,674.28
  4. Step 4: Simplify right side
    20,464.20x = 174,179,855.11
  5. Step 5: Solve for x
    x = 174,179,855.11/20,464.20
  6. Step 6: Final answer
    x = 8,511.44

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Half scale
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Double scale
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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.