Home / 28,868.82-43,307.76-12,228.96

Finding the Fourth Proportional to 28,868.82, 43,307.76 and 12,228.96

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Solution

The fourth proportional to 28,868.82, 43,307.76 and 12,228.96 is: 18,345.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.82 : 43,307.76 = 12,228.96 : x
  2. Step 2: Convert to fraction form
    28,868.82/43,307.76 = 12,228.96/x
  3. Step 3: Cross multiply
    28,868.82x = 43,307.76 × 12,228.96
  4. Step 4: Simplify right side
    28,868.82x = 529,608,864.73
  5. Step 5: Solve for x
    x = 529,608,864.73/28,868.82
  6. Step 6: Final answer
    x = 18,345.36

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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.