Home / 20,743.44-31,122.58-8,892.24

Finding the Fourth Proportional to 20,743.44, 31,122.58 and 8,892.24

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Solution

The fourth proportional to 20,743.44, 31,122.58 and 8,892.24 is: 13,341.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.44 : 31,122.58 = 8,892.24 : x
  2. Step 2: Convert to fraction form
    20,743.44/31,122.58 = 8,892.24/x
  3. Step 3: Cross multiply
    20,743.44x = 31,122.58 × 8,892.24
  4. Step 4: Simplify right side
    20,743.44x = 276,749,450.78
  5. Step 5: Solve for x
    x = 276,749,450.78/20,743.44
  6. Step 6: Final answer
    x = 13,341.54

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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.