Home / 13,955.34-20,933.06-3,425.43

Finding the Fourth Proportional to 13,955.34, 20,933.06 and 3,425.43

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Solution

The fourth proportional to 13,955.34, 20,933.06 and 3,425.43 is: 5,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.34 : 20,933.06 = 3,425.43 : x
  2. Step 2: Convert to fraction form
    13,955.34/20,933.06 = 3,425.43/x
  3. Step 3: Cross multiply
    13,955.34x = 20,933.06 × 3,425.43
  4. Step 4: Simplify right side
    13,955.34x = 71,704,731.72
  5. Step 5: Solve for x
    x = 71,704,731.72/13,955.34
  6. Step 6: Final answer
    x = 5,138.16

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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.