Home / 38,400.64-57,584.05-19,413.59

Finding the Fourth Proportional to 38,400.64, 57,584.05 and 19,413.59

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Solution

The fourth proportional to 38,400.64, 57,584.05 and 19,413.59 is: 29,111.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,400.64 : 57,584.05 = 19,413.59 : x
  2. Step 2: Convert to fraction form
    38,400.64/57,584.05 = 19,413.59/x
  3. Step 3: Cross multiply
    38,400.64x = 57,584.05 × 19,413.59
  4. Step 4: Simplify right side
    38,400.64x = 1,117,912,800.79
  5. Step 5: Solve for x
    x = 1,117,912,800.79/38,400.64
  6. Step 6: Final answer
    x = 29,111.83

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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.