Home / 19,321.20-28,977.48-8,922.96

Finding the Fourth Proportional to 19,321.20, 28,977.48 and 8,922.96

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Solution

The fourth proportional to 19,321.20, 28,977.48 and 8,922.96 is: 13,382.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.20 : 28,977.48 = 8,922.96 : x
  2. Step 2: Convert to fraction form
    19,321.20/28,977.48 = 8,922.96/x
  3. Step 3: Cross multiply
    19,321.20x = 28,977.48 × 8,922.96
  4. Step 4: Simplify right side
    19,321.20x = 258,564,894.94
  5. Step 5: Solve for x
    x = 258,564,894.94/19,321.20
  6. Step 6: Final answer
    x = 13,382.44

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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.