Home / 19,181.08-28,761.81-8,783.92

Finding the Fourth Proportional to 19,181.08, 28,761.81 and 8,783.92

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Solution

The fourth proportional to 19,181.08, 28,761.81 and 8,783.92 is: 13,171.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181.08 : 28,761.81 = 8,783.92 : x
  2. Step 2: Convert to fraction form
    19,181.08/28,761.81 = 8,783.92/x
  3. Step 3: Cross multiply
    19,181.08x = 28,761.81 × 8,783.92
  4. Step 4: Simplify right side
    19,181.08x = 252,641,438.10
  5. Step 5: Solve for x
    x = 252,641,438.10/19,181.08
  6. Step 6: Final answer
    x = 13,171.39

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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.