Home / 20,589.24-28,413.72-11,636.56

Finding the Fourth Proportional to 20,589.24, 28,413.72 and 11,636.56

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Solution

The fourth proportional to 20,589.24, 28,413.72 and 11,636.56 is: 16,058.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.24 : 28,413.72 = 11,636.56 : x
  2. Step 2: Convert to fraction form
    20,589.24/28,413.72 = 11,636.56/x
  3. Step 3: Cross multiply
    20,589.24x = 28,413.72 × 11,636.56
  4. Step 4: Simplify right side
    20,589.24x = 330,637,957.60
  5. Step 5: Solve for x
    x = 330,637,957.60/20,589.24
  6. Step 6: Final answer
    x = 16,058.77

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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.