Home / 20,922.93-28,873.53-11,362.73

Finding the Fourth Proportional to 20,922.93, 28,873.53 and 11,362.73

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Solution

The fourth proportional to 20,922.93, 28,873.53 and 11,362.73 is: 15,680.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.93 : 28,873.53 = 11,362.73 : x
  2. Step 2: Convert to fraction form
    20,922.93/28,873.53 = 11,362.73/x
  3. Step 3: Cross multiply
    20,922.93x = 28,873.53 × 11,362.73
  4. Step 4: Simplify right side
    20,922.93x = 328,082,125.54
  5. Step 5: Solve for x
    x = 328,082,125.54/20,922.93
  6. Step 6: Final answer
    x = 15,680.51

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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.