Home / 31,649.62-43,685.10-19,705.96

Finding the Fourth Proportional to 31,649.62, 43,685.10 and 19,705.96

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Solution

The fourth proportional to 31,649.62, 43,685.10 and 19,705.96 is: 27,199.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,649.62 : 43,685.10 = 19,705.96 : x
  2. Step 2: Convert to fraction form
    31,649.62/43,685.10 = 19,705.96/x
  3. Step 3: Cross multiply
    31,649.62x = 43,685.10 × 19,705.96
  4. Step 4: Simplify right side
    31,649.62x = 860,856,833.20
  5. Step 5: Solve for x
    x = 860,856,833.20/31,649.62
  6. Step 6: Final answer
    x = 27,199.59

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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.