Home / 28,413.81-39,219.66-16,480.08

Finding the Fourth Proportional to 28,413.81, 39,219.66 and 16,480.08

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Solution

The fourth proportional to 28,413.81, 39,219.66 and 16,480.08 is: 22,747.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.81 : 39,219.66 = 16,480.08 : x
  2. Step 2: Convert to fraction form
    28,413.81/39,219.66 = 16,480.08/x
  3. Step 3: Cross multiply
    28,413.81x = 39,219.66 × 16,480.08
  4. Step 4: Simplify right side
    28,413.81x = 646,343,134.37
  5. Step 5: Solve for x
    x = 646,343,134.37/28,413.81
  6. Step 6: Final answer
    x = 22,747.50

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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.