Home / 39,413.98-59,119.32-18,346.78

Finding the Fourth Proportional to 39,413.98, 59,119.32 and 18,346.78

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Solution

The fourth proportional to 39,413.98, 59,119.32 and 18,346.78 is: 27,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,413.98 : 59,119.32 = 18,346.78 : x
  2. Step 2: Convert to fraction form
    39,413.98/59,119.32 = 18,346.78/x
  3. Step 3: Cross multiply
    39,413.98x = 59,119.32 × 18,346.78
  4. Step 4: Simplify right side
    39,413.98x = 1,084,649,157.79
  5. Step 5: Solve for x
    x = 1,084,649,157.79/39,413.98
  6. Step 6: Final answer
    x = 27,519.40

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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.