Home / 28,087.20-38,759.04-16,149.60

Finding the Fourth Proportional to 28,087.20, 38,759.04 and 16,149.60

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Solution

The fourth proportional to 28,087.20, 38,759.04 and 16,149.60 is: 22,285.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.20 : 38,759.04 = 16,149.60 : x
  2. Step 2: Convert to fraction form
    28,087.20/38,759.04 = 16,149.60/x
  3. Step 3: Cross multiply
    28,087.20x = 38,759.04 × 16,149.60
  4. Step 4: Simplify right side
    28,087.20x = 625,942,992.38
  5. Step 5: Solve for x
    x = 625,942,992.38/28,087.20
  6. Step 6: Final answer
    x = 22,285.70

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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.