Home / 21,782.20-32,669.37-5,771.85

Finding the Fourth Proportional to 21,782.20, 32,669.37 and 5,771.85

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Solution

The fourth proportional to 21,782.20, 32,669.37 and 5,771.85 is: 8,656.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,782.20 : 32,669.37 = 5,771.85 : x
  2. Step 2: Convert to fraction form
    21,782.20/32,669.37 = 5,771.85/x
  3. Step 3: Cross multiply
    21,782.20x = 32,669.37 × 5,771.85
  4. Step 4: Simplify right side
    21,782.20x = 188,562,703.23
  5. Step 5: Solve for x
    x = 188,562,703.23/21,782.20
  6. Step 6: Final answer
    x = 8,656.73

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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.