Home / 19,200.15-28,800.23-11,326.95

Finding the Fourth Proportional to 19,200.15, 28,800.23 and 11,326.95

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Solution

The fourth proportional to 19,200.15, 28,800.23 and 11,326.95 is: 16,990.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200.15 : 28,800.23 = 11,326.95 : x
  2. Step 2: Convert to fraction form
    19,200.15/28,800.23 = 11,326.95/x
  3. Step 3: Cross multiply
    19,200.15x = 28,800.23 × 11,326.95
  4. Step 4: Simplify right side
    19,200.15x = 326,218,708.56
  5. Step 5: Solve for x
    x = 326,218,708.56/19,200.15
  6. Step 6: Final answer
    x = 16,990.43

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Similar ratio
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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.