Home / 28,413.36-42,620.25-12,614.15

Finding the Fourth Proportional to 28,413.36, 42,620.25 and 12,614.15

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Solution

The fourth proportional to 28,413.36, 42,620.25 and 12,614.15 is: 18,921.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.36 : 42,620.25 = 12,614.15 : x
  2. Step 2: Convert to fraction form
    28,413.36/42,620.25 = 12,614.15/x
  3. Step 3: Cross multiply
    28,413.36x = 42,620.25 × 12,614.15
  4. Step 4: Simplify right side
    28,413.36x = 537,618,013.44
  5. Step 5: Solve for x
    x = 537,618,013.44/28,413.36
  6. Step 6: Final answer
    x = 18,921.31

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1.5x scale

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.