Home / 20,347.88-30,517.04-5,553.28

Finding the Fourth Proportional to 20,347.88, 30,517.04 and 5,553.28

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Solution

The fourth proportional to 20,347.88, 30,517.04 and 5,553.28 is: 8,328.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.88 : 30,517.04 = 5,553.28 : x
  2. Step 2: Convert to fraction form
    20,347.88/30,517.04 = 5,553.28/x
  3. Step 3: Cross multiply
    20,347.88x = 30,517.04 × 5,553.28
  4. Step 4: Simplify right side
    20,347.88x = 169,469,667.89
  5. Step 5: Solve for x
    x = 169,469,667.89/20,347.88
  6. Step 6: Final answer
    x = 8,328.62

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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.