Home / 31,096.20-42,912.66-16,949.05

Finding the Fourth Proportional to 31,096.20, 42,912.66 and 16,949.05

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Solution

The fourth proportional to 31,096.20, 42,912.66 and 16,949.05 is: 23,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,096.20 : 42,912.66 = 16,949.05 : x
  2. Step 2: Convert to fraction form
    31,096.20/42,912.66 = 16,949.05/x
  3. Step 3: Cross multiply
    31,096.20x = 42,912.66 × 16,949.05
  4. Step 4: Simplify right side
    31,096.20x = 727,328,728.58
  5. Step 5: Solve for x
    x = 727,328,728.58/31,096.20
  6. Step 6: Final answer
    x = 23,389.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.