Home / 38,408.43-53,003.85-21,413.75

Finding the Fourth Proportional to 38,408.43, 53,003.85 and 21,413.75

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Solution

The fourth proportional to 38,408.43, 53,003.85 and 21,413.75 is: 29,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,408.43 : 53,003.85 = 21,413.75 : x
  2. Step 2: Convert to fraction form
    38,408.43/53,003.85 = 21,413.75/x
  3. Step 3: Cross multiply
    38,408.43x = 53,003.85 × 21,413.75
  4. Step 4: Simplify right side
    38,408.43x = 1,135,011,192.94
  5. Step 5: Solve for x
    x = 1,135,011,192.94/38,408.43
  6. Step 6: Final answer
    x = 29,551.10

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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.