Home / 29,138.70-43,740.45-18,057.90

Finding the Fourth Proportional to 29,138.70, 43,740.45 and 18,057.90

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Solution

The fourth proportional to 29,138.70, 43,740.45 and 18,057.90 is: 27,106.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138.70 : 43,740.45 = 18,057.90 : x
  2. Step 2: Convert to fraction form
    29,138.70/43,740.45 = 18,057.90/x
  3. Step 3: Cross multiply
    29,138.70x = 43,740.45 × 18,057.90
  4. Step 4: Simplify right side
    29,138.70x = 789,860,672.06
  5. Step 5: Solve for x
    x = 789,860,672.06/29,138.70
  6. Step 6: Final answer
    x = 27,106.93

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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.