Home / 20,960.20-31,433.63-6,917.62

Finding the Fourth Proportional to 20,960.20, 31,433.63 and 6,917.62

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Solution

The fourth proportional to 20,960.20, 31,433.63 and 6,917.62 is: 10,374.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.20 : 31,433.63 = 6,917.62 : x
  2. Step 2: Convert to fraction form
    20,960.20/31,433.63 = 6,917.62/x
  3. Step 3: Cross multiply
    20,960.20x = 31,433.63 × 6,917.62
  4. Step 4: Simplify right side
    20,960.20x = 217,445,750.39
  5. Step 5: Solve for x
    x = 217,445,750.39/20,960.20
  6. Step 6: Final answer
    x = 10,374.22

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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.