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Finding the Fourth Proportional to 28,941.94, 39,940.03 and 16,195.15

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Solution

The fourth proportional to 28,941.94, 39,940.03 and 16,195.15 is: 22,349.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.94 : 39,940.03 = 16,195.15 : x
  2. Step 2: Convert to fraction form
    28,941.94/39,940.03 = 16,195.15/x
  3. Step 3: Cross multiply
    28,941.94x = 39,940.03 × 16,195.15
  4. Step 4: Simplify right side
    28,941.94x = 646,834,776.85
  5. Step 5: Solve for x
    x = 646,834,776.85/28,941.94
  6. Step 6: Final answer
    x = 22,349.39

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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.