Home / 28,806.30-43,190.89-19,896.57

Finding the Fourth Proportional to 28,806.30, 43,190.89 and 19,896.57

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Solution

The fourth proportional to 28,806.30, 43,190.89 and 19,896.57 is: 29,832.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.30 : 43,190.89 = 19,896.57 : x
  2. Step 2: Convert to fraction form
    28,806.30/43,190.89 = 19,896.57/x
  3. Step 3: Cross multiply
    28,806.30x = 43,190.89 × 19,896.57
  4. Step 4: Simplify right side
    28,806.30x = 859,350,516.51
  5. Step 5: Solve for x
    x = 859,350,516.51/28,806.30
  6. Step 6: Final answer
    x = 29,832.03

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1.5x scale

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.