Home / 28,563.22-39,413.55-15,987.97

Finding the Fourth Proportional to 28,563.22, 39,413.55 and 15,987.97

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Solution

The fourth proportional to 28,563.22, 39,413.55 and 15,987.97 is: 22,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,563.22 : 39,413.55 = 15,987.97 : x
  2. Step 2: Convert to fraction form
    28,563.22/39,413.55 = 15,987.97/x
  3. Step 3: Cross multiply
    28,563.22x = 39,413.55 × 15,987.97
  4. Step 4: Simplify right side
    28,563.22x = 630,142,654.99
  5. Step 5: Solve for x
    x = 630,142,654.99/28,563.22
  6. Step 6: Final answer
    x = 22,061.33

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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.