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Finding the Fourth Proportional to 28,673.80, 43,022.84 and 13,893.72

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Solution

The fourth proportional to 28,673.80, 43,022.84 and 13,893.72 is: 20,846.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,673.80 : 43,022.84 = 13,893.72 : x
  2. Step 2: Convert to fraction form
    28,673.80/43,022.84 = 13,893.72/x
  3. Step 3: Cross multiply
    28,673.80x = 43,022.84 × 13,893.72
  4. Step 4: Simplify right side
    28,673.80x = 597,747,292.56
  5. Step 5: Solve for x
    x = 597,747,292.56/28,673.80
  6. Step 6: Final answer
    x = 20,846.46

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1.5x scale

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.