Home / 28,868.45-39,829.76-16,766.60

Finding the Fourth Proportional to 28,868.45, 39,829.76 and 16,766.60

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Solution

The fourth proportional to 28,868.45, 39,829.76 and 16,766.60 is: 23,132.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.45 : 39,829.76 = 16,766.60 : x
  2. Step 2: Convert to fraction form
    28,868.45/39,829.76 = 16,766.60/x
  3. Step 3: Cross multiply
    28,868.45x = 39,829.76 × 16,766.60
  4. Step 4: Simplify right side
    28,868.45x = 667,809,795.51
  5. Step 5: Solve for x
    x = 667,809,795.51/28,868.45
  6. Step 6: Final answer
    x = 23,132.86

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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.