Home / 13,952.34-20,928.56-3,422.43

Finding the Fourth Proportional to 13,952.34, 20,928.56 and 3,422.43

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Solution

The fourth proportional to 13,952.34, 20,928.56 and 3,422.43 is: 5,133.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.34 : 20,928.56 = 3,422.43 : x
  2. Step 2: Convert to fraction form
    13,952.34/20,928.56 = 3,422.43/x
  3. Step 3: Cross multiply
    13,952.34x = 20,928.56 × 3,422.43
  4. Step 4: Simplify right side
    13,952.34x = 71,626,531.60
  5. Step 5: Solve for x
    x = 71,626,531.60/13,952.34
  6. Step 6: Final answer
    x = 5,133.66

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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.