Home / 20,873.34-28,806.62-11,795.55

Finding the Fourth Proportional to 20,873.34, 28,806.62 and 11,795.55

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Solution

The fourth proportional to 20,873.34, 28,806.62 and 11,795.55 is: 16,278.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.34 : 28,806.62 = 11,795.55 : x
  2. Step 2: Convert to fraction form
    20,873.34/28,806.62 = 11,795.55/x
  3. Step 3: Cross multiply
    20,873.34x = 28,806.62 × 11,795.55
  4. Step 4: Simplify right side
    20,873.34x = 339,789,867.56
  5. Step 5: Solve for x
    x = 339,789,867.56/20,873.34
  6. Step 6: Final answer
    x = 16,278.65

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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.