Home / 43,982.91-65,977.34-21,790.33

Finding the Fourth Proportional to 43,982.91, 65,977.34 and 21,790.33

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Solution

The fourth proportional to 43,982.91, 65,977.34 and 21,790.33 is: 32,686.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,982.91 : 65,977.34 = 21,790.33 : x
  2. Step 2: Convert to fraction form
    43,982.91/65,977.34 = 21,790.33/x
  3. Step 3: Cross multiply
    43,982.91x = 65,977.34 × 21,790.33
  4. Step 4: Simplify right side
    43,982.91x = 1,437,667,737.23
  5. Step 5: Solve for x
    x = 1,437,667,737.23/43,982.91
  6. Step 6: Final answer
    x = 32,686.96

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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.