Home / 20,744.24-31,107.12-7,587.44

Finding the Fourth Proportional to 20,744.24, 31,107.12 and 7,587.44

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Solution

The fourth proportional to 20,744.24, 31,107.12 and 7,587.44 is: 11,377.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.24 : 31,107.12 = 7,587.44 : x
  2. Step 2: Convert to fraction form
    20,744.24/31,107.12 = 7,587.44/x
  3. Step 3: Cross multiply
    20,744.24x = 31,107.12 × 7,587.44
  4. Step 4: Simplify right side
    20,744.24x = 236,023,406.57
  5. Step 5: Solve for x
    x = 236,023,406.57/20,744.24
  6. Step 6: Final answer
    x = 11,377.78

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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.