Home / 21,229.20-31,843.80-16,323.60

Finding the Fourth Proportional to 21,229.20, 31,843.80 and 16,323.60

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Solution

The fourth proportional to 21,229.20, 31,843.80 and 16,323.60 is: 24,485.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.20 : 31,843.80 = 16,323.60 : x
  2. Step 2: Convert to fraction form
    21,229.20/31,843.80 = 16,323.60/x
  3. Step 3: Cross multiply
    21,229.20x = 31,843.80 × 16,323.60
  4. Step 4: Simplify right side
    21,229.20x = 519,805,453.68
  5. Step 5: Solve for x
    x = 519,805,453.68/21,229.20
  6. Step 6: Final answer
    x = 24,485.40

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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.