Home / 38,408.18-53,003.57-21,413.50

Finding the Fourth Proportional to 38,408.18, 53,003.57 and 21,413.50

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Solution

The fourth proportional to 38,408.18, 53,003.57 and 21,413.50 is: 29,550.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,408.18 : 53,003.57 = 21,413.50 : x
  2. Step 2: Convert to fraction form
    38,408.18/53,003.57 = 21,413.50/x
  3. Step 3: Cross multiply
    38,408.18x = 53,003.57 × 21,413.50
  4. Step 4: Simplify right side
    38,408.18x = 1,134,991,706.62
  5. Step 5: Solve for x
    x = 1,134,991,706.62/38,408.18
  6. Step 6: Final answer
    x = 29,550.78

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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.