Home / 28,053.45-42,082.07-11,413.35

Finding the Fourth Proportional to 28,053.45, 42,082.07 and 11,413.35

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Solution

The fourth proportional to 28,053.45, 42,082.07 and 11,413.35 is: 17,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.45 : 42,082.07 = 11,413.35 : x
  2. Step 2: Convert to fraction form
    28,053.45/42,082.07 = 11,413.35/x
  3. Step 3: Cross multiply
    28,053.45x = 42,082.07 × 11,413.35
  4. Step 4: Simplify right side
    28,053.45x = 480,297,336.57
  5. Step 5: Solve for x
    x = 480,297,336.57/28,053.45
  6. Step 6: Final answer
    x = 17,120.79

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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.