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Finding the Fourth Proportional to 28,450.44, 39,223.44 and 19,941.12

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Solution

The fourth proportional to 28,450.44, 39,223.44 and 19,941.12 is: 27,491.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.44 : 39,223.44 = 19,941.12 : x
  2. Step 2: Convert to fraction form
    28,450.44/39,223.44 = 19,941.12/x
  3. Step 3: Cross multiply
    28,450.44x = 39,223.44 × 19,941.12
  4. Step 4: Simplify right side
    28,450.44x = 782,159,323.85
  5. Step 5: Solve for x
    x = 782,159,323.85/28,450.44
  6. Step 6: Final answer
    x = 27,491.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.