Home / 31,846.96-43,951.41-20,539.99

Finding the Fourth Proportional to 31,846.96, 43,951.41 and 20,539.99

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Solution

The fourth proportional to 31,846.96, 43,951.41 and 20,539.99 is: 28,346.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,846.96 : 43,951.41 = 20,539.99 : x
  2. Step 2: Convert to fraction form
    31,846.96/43,951.41 = 20,539.99/x
  3. Step 3: Cross multiply
    31,846.96x = 43,951.41 × 20,539.99
  4. Step 4: Simplify right side
    31,846.96x = 902,761,521.89
  5. Step 5: Solve for x
    x = 902,761,521.89/31,846.96
  6. Step 6: Final answer
    x = 28,346.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.