Home / 19,270.32-28,867.68-12,676.56

Finding the Fourth Proportional to 19,270.32, 28,867.68 and 12,676.56

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Solution

The fourth proportional to 19,270.32, 28,867.68 and 12,676.56 is: 18,989.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.32 : 28,867.68 = 12,676.56 : x
  2. Step 2: Convert to fraction form
    19,270.32/28,867.68 = 12,676.56/x
  3. Step 3: Cross multiply
    19,270.32x = 28,867.68 × 12,676.56
  4. Step 4: Simplify right side
    19,270.32x = 365,942,877.58
  5. Step 5: Solve for x
    x = 365,942,877.58/19,270.32
  6. Step 6: Final answer
    x = 18,989.97

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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.