Home / 20,317.74-30,489.60-8,630.96

Finding the Fourth Proportional to 20,317.74, 30,489.60 and 8,630.96

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Solution

The fourth proportional to 20,317.74, 30,489.60 and 8,630.96 is: 12,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.74 : 30,489.60 = 8,630.96 : x
  2. Step 2: Convert to fraction form
    20,317.74/30,489.60 = 8,630.96/x
  3. Step 3: Cross multiply
    20,317.74x = 30,489.60 × 8,630.96
  4. Step 4: Simplify right side
    20,317.74x = 263,154,365.57
  5. Step 5: Solve for x
    x = 263,154,365.57/20,317.74
  6. Step 6: Final answer
    x = 12,951.95

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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.