Home / 28,305.39-39,059.78-16,367.88

Finding the Fourth Proportional to 28,305.39, 39,059.78 and 16,367.88

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Solution

The fourth proportional to 28,305.39, 39,059.78 and 16,367.88 is: 22,586.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.39 : 39,059.78 = 16,367.88 : x
  2. Step 2: Convert to fraction form
    28,305.39/39,059.78 = 16,367.88/x
  3. Step 3: Cross multiply
    28,305.39x = 39,059.78 × 16,367.88
  4. Step 4: Simplify right side
    28,305.39x = 639,325,710.03
  5. Step 5: Solve for x
    x = 639,325,710.03/28,305.39
  6. Step 6: Final answer
    x = 22,586.71

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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.