Home / 20,917.46-31,366.98-9,827.30

Finding the Fourth Proportional to 20,917.46, 31,366.98 and 9,827.30

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Solution

The fourth proportional to 20,917.46, 31,366.98 and 9,827.30 is: 14,736.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,917.46 : 31,366.98 = 9,827.30 : x
  2. Step 2: Convert to fraction form
    20,917.46/31,366.98 = 9,827.30/x
  3. Step 3: Cross multiply
    20,917.46x = 31,366.98 × 9,827.30
  4. Step 4: Simplify right side
    20,917.46x = 308,252,722.55
  5. Step 5: Solve for x
    x = 308,252,722.55/20,917.46
  6. Step 6: Final answer
    x = 14,736.62

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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.