Home / 20,891.57-31,331.07-6,096.51

Finding the Fourth Proportional to 20,891.57, 31,331.07 and 6,096.51

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Solution

The fourth proportional to 20,891.57, 31,331.07 and 6,096.51 is: 9,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,891.57 : 31,331.07 = 6,096.51 : x
  2. Step 2: Convert to fraction form
    20,891.57/31,331.07 = 6,096.51/x
  3. Step 3: Cross multiply
    20,891.57x = 31,331.07 × 6,096.51
  4. Step 4: Simplify right side
    20,891.57x = 191,010,181.57
  5. Step 5: Solve for x
    x = 191,010,181.57/20,891.57
  6. Step 6: Final answer
    x = 9,142.93

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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.