Home / 21,782.24-30,059.80-16,321.64

Finding the Fourth Proportional to 21,782.24, 30,059.80 and 16,321.64

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Solution

The fourth proportional to 21,782.24, 30,059.80 and 16,321.64 is: 22,524.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,782.24 : 30,059.80 = 16,321.64 : x
  2. Step 2: Convert to fraction form
    21,782.24/30,059.80 = 16,321.64/x
  3. Step 3: Cross multiply
    21,782.24x = 30,059.80 × 16,321.64
  4. Step 4: Simplify right side
    21,782.24x = 490,625,234.07
  5. Step 5: Solve for x
    x = 490,625,234.07/21,782.24
  6. Step 6: Final answer
    x = 22,524.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.