Home / 20,148.20-30,234.14-8,460.52

Finding the Fourth Proportional to 20,148.20, 30,234.14 and 8,460.52

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Solution

The fourth proportional to 20,148.20, 30,234.14 and 8,460.52 is: 12,695.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.20 : 30,234.14 = 8,460.52 : x
  2. Step 2: Convert to fraction form
    20,148.20/30,234.14 = 8,460.52/x
  3. Step 3: Cross multiply
    20,148.20x = 30,234.14 × 8,460.52
  4. Step 4: Simplify right side
    20,148.20x = 255,796,546.15
  5. Step 5: Solve for x
    x = 255,796,546.15/20,148.20
  6. Step 6: Final answer
    x = 12,695.75

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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.