Home / 28,168.22-38,865.72-16,835.80

Finding the Fourth Proportional to 28,168.22, 38,865.72 and 16,835.80

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Solution

The fourth proportional to 28,168.22, 38,865.72 and 16,835.80 is: 23,229.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168.22 : 38,865.72 = 16,835.80 : x
  2. Step 2: Convert to fraction form
    28,168.22/38,865.72 = 16,835.80/x
  3. Step 3: Cross multiply
    28,168.22x = 38,865.72 × 16,835.80
  4. Step 4: Simplify right side
    28,168.22x = 654,335,527.62
  5. Step 5: Solve for x
    x = 654,335,527.62/28,168.22
  6. Step 6: Final answer
    x = 23,229.57

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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.