Home / 20,731.26-31,096.76-5,940.20

Finding the Fourth Proportional to 20,731.26, 31,096.76 and 5,940.20

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Solution

The fourth proportional to 20,731.26, 31,096.76 and 5,940.20 is: 8,910.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731.26 : 31,096.76 = 5,940.20 : x
  2. Step 2: Convert to fraction form
    20,731.26/31,096.76 = 5,940.20/x
  3. Step 3: Cross multiply
    20,731.26x = 31,096.76 × 5,940.20
  4. Step 4: Simplify right side
    20,731.26x = 184,720,973.75
  5. Step 5: Solve for x
    x = 184,720,973.75/20,731.26
  6. Step 6: Final answer
    x = 8,910.26

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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.