Home / 13,932.61-20,900.33-4,072.07

Finding the Fourth Proportional to 13,932.61, 20,900.33 and 4,072.07

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Solution

The fourth proportional to 13,932.61, 20,900.33 and 4,072.07 is: 6,108.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.61 : 20,900.33 = 4,072.07 : x
  2. Step 2: Convert to fraction form
    13,932.61/20,900.33 = 4,072.07/x
  3. Step 3: Cross multiply
    13,932.61x = 20,900.33 × 4,072.07
  4. Step 4: Simplify right side
    13,932.61x = 85,107,653.94
  5. Step 5: Solve for x
    x = 85,107,653.94/13,932.61
  6. Step 6: Final answer
    x = 6,108.52

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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.