Home / 28,826.07-39,780.21-16,078.83

Finding the Fourth Proportional to 28,826.07, 39,780.21 and 16,078.83

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Solution

The fourth proportional to 28,826.07, 39,780.21 and 16,078.83 is: 22,188.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,826.07 : 39,780.21 = 16,078.83 : x
  2. Step 2: Convert to fraction form
    28,826.07/39,780.21 = 16,078.83/x
  3. Step 3: Cross multiply
    28,826.07x = 39,780.21 × 16,078.83
  4. Step 4: Simplify right side
    28,826.07x = 639,619,233.95
  5. Step 5: Solve for x
    x = 639,619,233.95/28,826.07
  6. Step 6: Final answer
    x = 22,188.92

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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.