Home / 13,625.38-20,432.70-5,304.28

Finding the Fourth Proportional to 13,625.38, 20,432.70 and 5,304.28

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Solution

The fourth proportional to 13,625.38, 20,432.70 and 5,304.28 is: 7,954.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.38 : 20,432.70 = 5,304.28 : x
  2. Step 2: Convert to fraction form
    13,625.38/20,432.70 = 5,304.28/x
  3. Step 3: Cross multiply
    13,625.38x = 20,432.70 × 5,304.28
  4. Step 4: Simplify right side
    13,625.38x = 108,380,761.96
  5. Step 5: Solve for x
    x = 108,380,761.96/13,625.38
  6. Step 6: Final answer
    x = 7,954.33

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1.5x scale

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.