Home / 21,794.95-32,661.23-12,415.61

Finding the Fourth Proportional to 21,794.95, 32,661.23 and 12,415.61

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Solution

The fourth proportional to 21,794.95, 32,661.23 and 12,415.61 is: 18,605.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,794.95 : 32,661.23 = 12,415.61 : x
  2. Step 2: Convert to fraction form
    21,794.95/32,661.23 = 12,415.61/x
  3. Step 3: Cross multiply
    21,794.95x = 32,661.23 × 12,415.61
  4. Step 4: Simplify right side
    21,794.95x = 405,509,093.80
  5. Step 5: Solve for x
    x = 405,509,093.80/21,794.95
  6. Step 6: Final answer
    x = 18,605.64

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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.