Home / 20,747.90-31,121.85-7,594.94

Finding the Fourth Proportional to 20,747.90, 31,121.85 and 7,594.94

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Solution

The fourth proportional to 20,747.90, 31,121.85 and 7,594.94 is: 11,392.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.90 : 31,121.85 = 7,594.94 : x
  2. Step 2: Convert to fraction form
    20,747.90/31,121.85 = 7,594.94/x
  3. Step 3: Cross multiply
    20,747.90x = 31,121.85 × 7,594.94
  4. Step 4: Simplify right side
    20,747.90x = 236,368,583.44
  5. Step 5: Solve for x
    x = 236,368,583.44/20,747.90
  6. Step 6: Final answer
    x = 11,392.41

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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.