Home / 20,529.08-30,793.62-8,225.72

Finding the Fourth Proportional to 20,529.08, 30,793.62 and 8,225.72

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Solution

The fourth proportional to 20,529.08, 30,793.62 and 8,225.72 is: 12,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.08 : 30,793.62 = 8,225.72 : x
  2. Step 2: Convert to fraction form
    20,529.08/30,793.62 = 8,225.72/x
  3. Step 3: Cross multiply
    20,529.08x = 30,793.62 × 8,225.72
  4. Step 4: Simplify right side
    20,529.08x = 253,299,695.91
  5. Step 5: Solve for x
    x = 253,299,695.91/20,529.08
  6. Step 6: Final answer
    x = 12,338.58

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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.