Home / 39,413.75-54,388.77-22,415.69

Finding the Fourth Proportional to 39,413.75, 54,388.77 and 22,415.69

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Solution

The fourth proportional to 39,413.75, 54,388.77 and 22,415.69 is: 30,932.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,413.75 : 54,388.77 = 22,415.69 : x
  2. Step 2: Convert to fraction form
    39,413.75/54,388.77 = 22,415.69/x
  3. Step 3: Cross multiply
    39,413.75x = 54,388.77 × 22,415.69
  4. Step 4: Simplify right side
    39,413.75x = 1,219,161,535.86
  5. Step 5: Solve for x
    x = 1,219,161,535.86/39,413.75
  6. Step 6: Final answer
    x = 30,932.40

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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.