Home / 31,198.28-46,805.63-11,209.79

Finding the Fourth Proportional to 31,198.28, 46,805.63 and 11,209.79

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Solution

The fourth proportional to 31,198.28, 46,805.63 and 11,209.79 is: 16,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,198.28 : 46,805.63 = 11,209.79 : x
  2. Step 2: Convert to fraction form
    31,198.28/46,805.63 = 11,209.79/x
  3. Step 3: Cross multiply
    31,198.28x = 46,805.63 × 11,209.79
  4. Step 4: Simplify right side
    31,198.28x = 524,681,407.14
  5. Step 5: Solve for x
    x = 524,681,407.14/31,198.28
  6. Step 6: Final answer
    x = 16,817.64

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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.