Home / 20,743.91-31,118.95-6,701.33

Finding the Fourth Proportional to 20,743.91, 31,118.95 and 6,701.33

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Solution

The fourth proportional to 20,743.91, 31,118.95 and 6,701.33 is: 10,052.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.91 : 31,118.95 = 6,701.33 : x
  2. Step 2: Convert to fraction form
    20,743.91/31,118.95 = 6,701.33/x
  3. Step 3: Cross multiply
    20,743.91x = 31,118.95 × 6,701.33
  4. Step 4: Simplify right side
    20,743.91x = 208,538,180.86
  5. Step 5: Solve for x
    x = 208,538,180.86/20,743.91
  6. Step 6: Final answer
    x = 10,052.99

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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.