Home / 43,147.75-64,628.14-20,914.62

Finding the Fourth Proportional to 43,147.75, 64,628.14 and 20,914.62

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Solution

The fourth proportional to 43,147.75, 64,628.14 and 20,914.62 is: 31,326.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,147.75 : 64,628.14 = 20,914.62 : x
  2. Step 2: Convert to fraction form
    43,147.75/64,628.14 = 20,914.62/x
  3. Step 3: Cross multiply
    43,147.75x = 64,628.14 × 20,914.62
  4. Step 4: Simplify right side
    43,147.75x = 1,351,672,989.41
  5. Step 5: Solve for x
    x = 1,351,672,989.41/43,147.75
  6. Step 6: Final answer
    x = 31,326.62

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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.