Home / 28,760.88-39,688.44-16,186.44

Finding the Fourth Proportional to 28,760.88, 39,688.44 and 16,186.44

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Solution

The fourth proportional to 28,760.88, 39,688.44 and 16,186.44 is: 22,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.88 : 39,688.44 = 16,186.44 : x
  2. Step 2: Convert to fraction form
    28,760.88/39,688.44 = 16,186.44/x
  3. Step 3: Cross multiply
    28,760.88x = 39,688.44 × 16,186.44
  4. Step 4: Simplify right side
    28,760.88x = 642,414,552.75
  5. Step 5: Solve for x
    x = 642,414,552.75/28,760.88
  6. Step 6: Final answer
    x = 22,336.40

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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.