Home / 31,622.15-47,428.45-11,896.11

Finding the Fourth Proportional to 31,622.15, 47,428.45 and 11,896.11

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Solution

The fourth proportional to 31,622.15, 47,428.45 and 11,896.11 is: 17,842.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,622.15 : 47,428.45 = 11,896.11 : x
  2. Step 2: Convert to fraction form
    31,622.15/47,428.45 = 11,896.11/x
  3. Step 3: Cross multiply
    31,622.15x = 47,428.45 × 11,896.11
  4. Step 4: Simplify right side
    31,622.15x = 564,214,028.59
  5. Step 5: Solve for x
    x = 564,214,028.59/31,622.15
  6. Step 6: Final answer
    x = 17,842.37

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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.