Home / 20,215.32-30,326.23-8,530.26

Finding the Fourth Proportional to 20,215.32, 30,326.23 and 8,530.26

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Solution

The fourth proportional to 20,215.32, 30,326.23 and 8,530.26 is: 12,796.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.32 : 30,326.23 = 8,530.26 : x
  2. Step 2: Convert to fraction form
    20,215.32/30,326.23 = 8,530.26/x
  3. Step 3: Cross multiply
    20,215.32x = 30,326.23 × 8,530.26
  4. Step 4: Simplify right side
    20,215.32x = 258,690,626.72
  5. Step 5: Solve for x
    x = 258,690,626.72/20,215.32
  6. Step 6: Final answer
    x = 12,796.76

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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.