Home / 20,696.46-31,044.90-10,854.96

Finding the Fourth Proportional to 20,696.46, 31,044.90 and 10,854.96

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Solution

The fourth proportional to 20,696.46, 31,044.90 and 10,854.96 is: 16,282.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.46 : 31,044.90 = 10,854.96 : x
  2. Step 2: Convert to fraction form
    20,696.46/31,044.90 = 10,854.96/x
  3. Step 3: Cross multiply
    20,696.46x = 31,044.90 × 10,854.96
  4. Step 4: Simplify right side
    20,696.46x = 336,990,938.20
  5. Step 5: Solve for x
    x = 336,990,938.20/20,696.46
  6. Step 6: Final answer
    x = 16,282.54

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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.