Home / 31,229.04-43,096.20-19,289.64

Finding the Fourth Proportional to 31,229.04, 43,096.20 and 19,289.64

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Solution

The fourth proportional to 31,229.04, 43,096.20 and 19,289.64 is: 26,619.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,229.04 : 43,096.20 = 19,289.64 : x
  2. Step 2: Convert to fraction form
    31,229.04/43,096.20 = 19,289.64/x
  3. Step 3: Cross multiply
    31,229.04x = 43,096.20 × 19,289.64
  4. Step 4: Simplify right side
    31,229.04x = 831,310,183.37
  5. Step 5: Solve for x
    x = 831,310,183.37/31,229.04
  6. Step 6: Final answer
    x = 26,619.78

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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.