Home / 21,003.72-31,499.46-17,296.80

Finding the Fourth Proportional to 21,003.72, 31,499.46 and 17,296.80

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Solution

The fourth proportional to 21,003.72, 31,499.46 and 17,296.80 is: 25,940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003.72 : 31,499.46 = 17,296.80 : x
  2. Step 2: Convert to fraction form
    21,003.72/31,499.46 = 17,296.80/x
  3. Step 3: Cross multiply
    21,003.72x = 31,499.46 × 17,296.80
  4. Step 4: Simplify right side
    21,003.72x = 544,839,859.73
  5. Step 5: Solve for x
    x = 544,839,859.73/21,003.72
  6. Step 6: Final answer
    x = 25,940.16

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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.