Home / 20,635.36-28,413.03-16,116.29

Finding the Fourth Proportional to 20,635.36, 28,413.03 and 16,116.29

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Solution

The fourth proportional to 20,635.36, 28,413.03 and 16,116.29 is: 22,190.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.36 : 28,413.03 = 16,116.29 : x
  2. Step 2: Convert to fraction form
    20,635.36/28,413.03 = 16,116.29/x
  3. Step 3: Cross multiply
    20,635.36x = 28,413.03 × 16,116.29
  4. Step 4: Simplify right side
    20,635.36x = 457,912,631.26
  5. Step 5: Solve for x
    x = 457,912,631.26/20,635.36
  6. Step 6: Final answer
    x = 22,190.68

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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.