Home / 20,896.74-31,362.60-19,583.12

Finding the Fourth Proportional to 20,896.74, 31,362.60 and 19,583.12

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Solution

The fourth proportional to 20,896.74, 31,362.60 and 19,583.12 is: 29,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.74 : 31,362.60 = 19,583.12 : x
  2. Step 2: Convert to fraction form
    20,896.74/31,362.60 = 19,583.12/x
  3. Step 3: Cross multiply
    20,896.74x = 31,362.60 × 19,583.12
  4. Step 4: Simplify right side
    20,896.74x = 614,177,559.31
  5. Step 5: Solve for x
    x = 614,177,559.31/20,896.74
  6. Step 6: Final answer
    x = 29,391.07

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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.