Home / 20,928.99-31,394.13-6,137.94

Finding the Fourth Proportional to 20,928.99, 31,394.13 and 6,137.94

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Solution

The fourth proportional to 20,928.99, 31,394.13 and 6,137.94 is: 9,207.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928.99 : 31,394.13 = 6,137.94 : x
  2. Step 2: Convert to fraction form
    20,928.99/31,394.13 = 6,137.94/x
  3. Step 3: Cross multiply
    20,928.99x = 31,394.13 × 6,137.94
  4. Step 4: Simplify right side
    20,928.99x = 192,695,286.29
  5. Step 5: Solve for x
    x = 192,695,286.29/20,928.99
  6. Step 6: Final answer
    x = 9,207.10

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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.