Home / 30,655.22-45,940.30-13,974.48

Finding the Fourth Proportional to 30,655.22, 45,940.30 and 13,974.48

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Solution

The fourth proportional to 30,655.22, 45,940.30 and 13,974.48 is: 20,942.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655.22 : 45,940.30 = 13,974.48 : x
  2. Step 2: Convert to fraction form
    30,655.22/45,940.30 = 13,974.48/x
  3. Step 3: Cross multiply
    30,655.22x = 45,940.30 × 13,974.48
  4. Step 4: Simplify right side
    30,655.22x = 641,991,803.54
  5. Step 5: Solve for x
    x = 641,991,803.54/30,655.22
  6. Step 6: Final answer
    x = 20,942.33

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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.