Home / 20,198.04-30,294.91-5,408.45

Finding the Fourth Proportional to 20,198.04, 30,294.91 and 5,408.45

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Solution

The fourth proportional to 20,198.04, 30,294.91 and 5,408.45 is: 8,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.04 : 30,294.91 = 5,408.45 : x
  2. Step 2: Convert to fraction form
    20,198.04/30,294.91 = 5,408.45/x
  3. Step 3: Cross multiply
    20,198.04x = 30,294.91 × 5,408.45
  4. Step 4: Simplify right side
    20,198.04x = 163,848,474.88
  5. Step 5: Solve for x
    x = 163,848,474.88/20,198.04
  6. Step 6: Final answer
    x = 8,112.10

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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.