Home / 21,944.21-32,860.22-12,072.65

Finding the Fourth Proportional to 21,944.21, 32,860.22 and 12,072.65

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Solution

The fourth proportional to 21,944.21, 32,860.22 and 12,072.65 is: 18,078.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,944.21 : 32,860.22 = 12,072.65 : x
  2. Step 2: Convert to fraction form
    21,944.21/32,860.22 = 12,072.65/x
  3. Step 3: Cross multiply
    21,944.21x = 32,860.22 × 12,072.65
  4. Step 4: Simplify right side
    21,944.21x = 396,709,710.32
  5. Step 5: Solve for x
    x = 396,709,710.32/21,944.21
  6. Step 6: Final answer
    x = 18,078.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.