Home / 28,149.70-38,840.16-16,210.84

Finding the Fourth Proportional to 28,149.70, 38,840.16 and 16,210.84

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Solution

The fourth proportional to 28,149.70, 38,840.16 and 16,210.84 is: 22,367.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.70 : 38,840.16 = 16,210.84 : x
  2. Step 2: Convert to fraction form
    28,149.70/38,840.16 = 16,210.84/x
  3. Step 3: Cross multiply
    28,149.70x = 38,840.16 × 16,210.84
  4. Step 4: Simplify right side
    28,149.70x = 629,631,619.33
  5. Step 5: Solve for x
    x = 629,631,619.33/28,149.70
  6. Step 6: Final answer
    x = 22,367.26

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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.