Home / 28,960.98-43,446.43-12,321.15

Finding the Fourth Proportional to 28,960.98, 43,446.43 and 12,321.15

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Solution

The fourth proportional to 28,960.98, 43,446.43 and 12,321.15 is: 18,483.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,960.98 : 43,446.43 = 12,321.15 : x
  2. Step 2: Convert to fraction form
    28,960.98/43,446.43 = 12,321.15/x
  3. Step 3: Cross multiply
    28,960.98x = 43,446.43 × 12,321.15
  4. Step 4: Simplify right side
    28,960.98x = 535,309,980.99
  5. Step 5: Solve for x
    x = 535,309,980.99/28,960.98
  6. Step 6: Final answer
    x = 18,483.84

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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.