Home / 40,413.89-60,619.38-12,332.81

Finding the Fourth Proportional to 40,413.89, 60,619.38 and 12,332.81

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Solution

The fourth proportional to 40,413.89, 60,619.38 and 12,332.81 is: 18,498.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,413.89 : 60,619.38 = 12,332.81 : x
  2. Step 2: Convert to fraction form
    40,413.89/60,619.38 = 12,332.81/x
  3. Step 3: Cross multiply
    40,413.89x = 60,619.38 × 12,332.81
  4. Step 4: Simplify right side
    40,413.89x = 747,607,295.86
  5. Step 5: Solve for x
    x = 747,607,295.86/40,413.89
  6. Step 6: Final answer
    x = 18,498.77

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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.