Home / 20,731.56-31,097.23-5,940.46

Finding the Fourth Proportional to 20,731.56, 31,097.23 and 5,940.46

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Solution

The fourth proportional to 20,731.56, 31,097.23 and 5,940.46 is: 8,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731.56 : 31,097.23 = 5,940.46 : x
  2. Step 2: Convert to fraction form
    20,731.56/31,097.23 = 5,940.46/x
  3. Step 3: Cross multiply
    20,731.56x = 31,097.23 × 5,940.46
  4. Step 4: Simplify right side
    20,731.56x = 184,731,850.93
  5. Step 5: Solve for x
    x = 184,731,850.93/20,731.56
  6. Step 6: Final answer
    x = 8,910.66

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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.