Home / 18,804.21-25,940.62-15,818.95

Finding the Fourth Proportional to 18,804.21, 25,940.62 and 15,818.95

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Solution

The fourth proportional to 18,804.21, 25,940.62 and 15,818.95 is: 21,822.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.21 : 25,940.62 = 15,818.95 : x
  2. Step 2: Convert to fraction form
    18,804.21/25,940.62 = 15,818.95/x
  3. Step 3: Cross multiply
    18,804.21x = 25,940.62 × 15,818.95
  4. Step 4: Simplify right side
    18,804.21x = 410,353,370.75
  5. Step 5: Solve for x
    x = 410,353,370.75/18,804.21
  6. Step 6: Final answer
    x = 21,822.42

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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.