Home / 20,932.30-31,395.98-5,940.74

Finding the Fourth Proportional to 20,932.30, 31,395.98 and 5,940.74

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Solution

The fourth proportional to 20,932.30, 31,395.98 and 5,940.74 is: 8,910.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.30 : 31,395.98 = 5,940.74 : x
  2. Step 2: Convert to fraction form
    20,932.30/31,395.98 = 5,940.74/x
  3. Step 3: Cross multiply
    20,932.30x = 31,395.98 × 5,940.74
  4. Step 4: Simplify right side
    20,932.30x = 186,515,324.52
  5. Step 5: Solve for x
    x = 186,515,324.52/20,932.30
  6. Step 6: Final answer
    x = 8,910.41

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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.