Home / 20,667.46-31,003.23-6,623.95

Finding the Fourth Proportional to 20,667.46, 31,003.23 and 6,623.95

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Solution

The fourth proportional to 20,667.46, 31,003.23 and 6,623.95 is: 9,936.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667.46 : 31,003.23 = 6,623.95 : x
  2. Step 2: Convert to fraction form
    20,667.46/31,003.23 = 6,623.95/x
  3. Step 3: Cross multiply
    20,667.46x = 31,003.23 × 6,623.95
  4. Step 4: Simplify right side
    20,667.46x = 205,363,845.36
  5. Step 5: Solve for x
    x = 205,363,845.36/20,667.46
  6. Step 6: Final answer
    x = 9,936.58

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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.