Home / 20,207.39-30,314.76-8,354.73

Finding the Fourth Proportional to 20,207.39, 30,314.76 and 8,354.73

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Solution

The fourth proportional to 20,207.39, 30,314.76 and 8,354.73 is: 12,533.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.39 : 30,314.76 = 8,354.73 : x
  2. Step 2: Convert to fraction form
    20,207.39/30,314.76 = 8,354.73/x
  3. Step 3: Cross multiply
    20,207.39x = 30,314.76 × 8,354.73
  4. Step 4: Simplify right side
    20,207.39x = 253,271,634.81
  5. Step 5: Solve for x
    x = 253,271,634.81/20,207.39
  6. Step 6: Final answer
    x = 12,533.61

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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.