Home / 20,928.24-31,392.99-6,137.19

Finding the Fourth Proportional to 20,928.24, 31,392.99 and 6,137.19

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Solution

The fourth proportional to 20,928.24, 31,392.99 and 6,137.19 is: 9,205.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928.24 : 31,392.99 = 6,137.19 : x
  2. Step 2: Convert to fraction form
    20,928.24/31,392.99 = 6,137.19/x
  3. Step 3: Cross multiply
    20,928.24x = 31,392.99 × 6,137.19
  4. Step 4: Simplify right side
    20,928.24x = 192,664,744.30
  5. Step 5: Solve for x
    x = 192,664,744.30/20,928.24
  6. Step 6: Final answer
    x = 9,205.97

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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.