Home / 21,781.43-32,668.22-5,771.07

Finding the Fourth Proportional to 21,781.43, 32,668.22 and 5,771.07

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Solution

The fourth proportional to 21,781.43, 32,668.22 and 5,771.07 is: 8,655.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781.43 : 32,668.22 = 5,771.07 : x
  2. Step 2: Convert to fraction form
    21,781.43/32,668.22 = 5,771.07/x
  3. Step 3: Cross multiply
    21,781.43x = 32,668.22 × 5,771.07
  4. Step 4: Simplify right side
    21,781.43x = 188,530,555.54
  5. Step 5: Solve for x
    x = 188,530,555.54/21,781.43
  6. Step 6: Final answer
    x = 8,655.57

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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.