Home / 28,620.68-39,497.56-16,682.09

Finding the Fourth Proportional to 28,620.68, 39,497.56 and 16,682.09

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Solution

The fourth proportional to 28,620.68, 39,497.56 and 16,682.09 is: 23,021.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.68 : 39,497.56 = 16,682.09 : x
  2. Step 2: Convert to fraction form
    28,620.68/39,497.56 = 16,682.09/x
  3. Step 3: Cross multiply
    28,620.68x = 39,497.56 × 16,682.09
  4. Step 4: Simplify right side
    28,620.68x = 658,901,611.51
  5. Step 5: Solve for x
    x = 658,901,611.51/28,620.68
  6. Step 6: Final answer
    x = 23,021.88

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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.