Home / 21,509.85-29,724.66-16,195.44

Finding the Fourth Proportional to 21,509.85, 29,724.66 and 16,195.44

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Solution

The fourth proportional to 21,509.85, 29,724.66 and 16,195.44 is: 22,380.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509.85 : 29,724.66 = 16,195.44 : x
  2. Step 2: Convert to fraction form
    21,509.85/29,724.66 = 16,195.44/x
  3. Step 3: Cross multiply
    21,509.85x = 29,724.66 × 16,195.44
  4. Step 4: Simplify right side
    21,509.85x = 481,403,947.55
  5. Step 5: Solve for x
    x = 481,403,947.55/21,509.85
  6. Step 6: Final answer
    x = 22,380.63

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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.