Home / 28,413.76-39,216-17,812.48

Finding the Fourth Proportional to 28,413.76, 39,216 and 17,812.48

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Solution

The fourth proportional to 28,413.76, 39,216 and 17,812.48 is: 24,584.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.76 : 39,216 = 17,812.48 : x
  2. Step 2: Convert to fraction form
    28,413.76/39,216 = 17,812.48/x
  3. Step 3: Cross multiply
    28,413.76x = 39,216 × 17,812.48
  4. Step 4: Simplify right side
    28,413.76x = 698,534,215.68
  5. Step 5: Solve for x
    x = 698,534,215.68/28,413.76
  6. Step 6: Final answer
    x = 24,584.36

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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.