Home / 38,355.78-57,550.43-13,413.74

Finding the Fourth Proportional to 38,355.78, 57,550.43 and 13,413.74

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Solution

The fourth proportional to 38,355.78, 57,550.43 and 13,413.74 is: 20,126.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,355.78 : 57,550.43 = 13,413.74 : x
  2. Step 2: Convert to fraction form
    38,355.78/57,550.43 = 13,413.74/x
  3. Step 3: Cross multiply
    38,355.78x = 57,550.43 × 13,413.74
  4. Step 4: Simplify right side
    38,355.78x = 771,966,150.09
  5. Step 5: Solve for x
    x = 771,966,150.09/38,355.78
  6. Step 6: Final answer
    x = 20,126.46

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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.