Home / 19,221.95-28,843.86-12,651.23

Finding the Fourth Proportional to 19,221.95, 28,843.86 and 12,651.23

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Solution

The fourth proportional to 19,221.95, 28,843.86 and 12,651.23 is: 18,984.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,221.95 : 28,843.86 = 12,651.23 : x
  2. Step 2: Convert to fraction form
    19,221.95/28,843.86 = 12,651.23/x
  3. Step 3: Cross multiply
    19,221.95x = 28,843.86 × 12,651.23
  4. Step 4: Simplify right side
    19,221.95x = 364,910,162.73
  5. Step 5: Solve for x
    x = 364,910,162.73/19,221.95
  6. Step 6: Final answer
    x = 18,984.04

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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.