Home / 20,031.88-30,036.72-8,193.96

Finding the Fourth Proportional to 20,031.88, 30,036.72 and 8,193.96

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Solution

The fourth proportional to 20,031.88, 30,036.72 and 8,193.96 is: 12,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.88 : 30,036.72 = 8,193.96 : x
  2. Step 2: Convert to fraction form
    20,031.88/30,036.72 = 8,193.96/x
  3. Step 3: Cross multiply
    20,031.88x = 30,036.72 × 8,193.96
  4. Step 4: Simplify right side
    20,031.88x = 246,119,682.21
  5. Step 5: Solve for x
    x = 246,119,682.21/20,031.88
  6. Step 6: Final answer
    x = 12,286.40

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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.