Home / 19,930.80-29,896.20-16,723.20

Finding the Fourth Proportional to 19,930.80, 29,896.20 and 16,723.20

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Solution

The fourth proportional to 19,930.80, 29,896.20 and 16,723.20 is: 25,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.80 : 29,896.20 = 16,723.20 : x
  2. Step 2: Convert to fraction form
    19,930.80/29,896.20 = 16,723.20/x
  3. Step 3: Cross multiply
    19,930.80x = 29,896.20 × 16,723.20
  4. Step 4: Simplify right side
    19,930.80x = 499,960,131.84
  5. Step 5: Solve for x
    x = 499,960,131.84/19,930.80
  6. Step 6: Final answer
    x = 25,084.80

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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.