Home / 20,766.06-28,657.26-11,334.69

Finding the Fourth Proportional to 20,766.06, 28,657.26 and 11,334.69

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Solution

The fourth proportional to 20,766.06, 28,657.26 and 11,334.69 is: 15,641.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,766.06 : 28,657.26 = 11,334.69 : x
  2. Step 2: Convert to fraction form
    20,766.06/28,657.26 = 11,334.69/x
  3. Step 3: Cross multiply
    20,766.06x = 28,657.26 × 11,334.69
  4. Step 4: Simplify right side
    20,766.06x = 324,821,158.35
  5. Step 5: Solve for x
    x = 324,821,158.35/20,766.06
  6. Step 6: Final answer
    x = 15,641.93

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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.