Home / 20,635.56-28,413.30-16,116.50

Finding the Fourth Proportional to 20,635.56, 28,413.30 and 16,116.50

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Solution

The fourth proportional to 20,635.56, 28,413.30 and 16,116.50 is: 22,190.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.56 : 28,413.30 = 16,116.50 : x
  2. Step 2: Convert to fraction form
    20,635.56/28,413.30 = 16,116.50/x
  3. Step 3: Cross multiply
    20,635.56x = 28,413.30 × 16,116.50
  4. Step 4: Simplify right side
    20,635.56x = 457,922,949.45
  5. Step 5: Solve for x
    x = 457,922,949.45/20,635.56
  6. Step 6: Final answer
    x = 22,190.96

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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.