Home / 20,893.44-31,340.23-5,311.07

Finding the Fourth Proportional to 20,893.44, 31,340.23 and 5,311.07

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Solution

The fourth proportional to 20,893.44, 31,340.23 and 5,311.07 is: 7,966.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.44 : 31,340.23 = 5,311.07 : x
  2. Step 2: Convert to fraction form
    20,893.44/31,340.23 = 5,311.07/x
  3. Step 3: Cross multiply
    20,893.44x = 31,340.23 × 5,311.07
  4. Step 4: Simplify right side
    20,893.44x = 166,450,090.27
  5. Step 5: Solve for x
    x = 166,450,090.27/20,893.44
  6. Step 6: Final answer
    x = 7,966.62

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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.