Home / 28,286.58-42,413.61-11,658.09

Finding the Fourth Proportional to 28,286.58, 42,413.61 and 11,658.09

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Solution

The fourth proportional to 28,286.58, 42,413.61 and 11,658.09 is: 17,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.58 : 42,413.61 = 11,658.09 : x
  2. Step 2: Convert to fraction form
    28,286.58/42,413.61 = 11,658.09/x
  3. Step 3: Cross multiply
    28,286.58x = 42,413.61 × 11,658.09
  4. Step 4: Simplify right side
    28,286.58x = 494,461,682.60
  5. Step 5: Solve for x
    x = 494,461,682.60/28,286.58
  6. Step 6: Final answer
    x = 17,480.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.