Home / 28,413.91-39,201.67-18,349.16

Finding the Fourth Proportional to 28,413.91, 39,201.67 and 18,349.16

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Solution

The fourth proportional to 28,413.91, 39,201.67 and 18,349.16 is: 25,315.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.91 : 39,201.67 = 18,349.16 : x
  2. Step 2: Convert to fraction form
    28,413.91/39,201.67 = 18,349.16/x
  3. Step 3: Cross multiply
    28,413.91x = 39,201.67 × 18,349.16
  4. Step 4: Simplify right side
    28,413.91x = 719,317,519.09
  5. Step 5: Solve for x
    x = 719,317,519.09/28,413.91
  6. Step 6: Final answer
    x = 25,315.68

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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.