Home / 28,118.80-38,804.64-16,185.84

Finding the Fourth Proportional to 28,118.80, 38,804.64 and 16,185.84

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Solution

The fourth proportional to 28,118.80, 38,804.64 and 16,185.84 is: 22,336.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118.80 : 38,804.64 = 16,185.84 : x
  2. Step 2: Convert to fraction form
    28,118.80/38,804.64 = 16,185.84/x
  3. Step 3: Cross multiply
    28,118.80x = 38,804.64 × 16,185.84
  4. Step 4: Simplify right side
    28,118.80x = 628,085,694.30
  5. Step 5: Solve for x
    x = 628,085,694.30/28,118.80
  6. Step 6: Final answer
    x = 22,336.86

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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.