Home / 20,215.14-30,325.94-8,530.08

Finding the Fourth Proportional to 20,215.14, 30,325.94 and 8,530.08

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Solution

The fourth proportional to 20,215.14, 30,325.94 and 8,530.08 is: 12,796.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.14 : 30,325.94 = 8,530.08 : x
  2. Step 2: Convert to fraction form
    20,215.14/30,325.94 = 8,530.08/x
  3. Step 3: Cross multiply
    20,215.14x = 30,325.94 × 8,530.08
  4. Step 4: Simplify right side
    20,215.14x = 258,682,694.28
  5. Step 5: Solve for x
    x = 258,682,694.28/20,215.14
  6. Step 6: Final answer
    x = 12,796.48

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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.