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Finding the Fourth Proportional to 28,964, 43,475.12 and 19,573.92

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Solution

The fourth proportional to 28,964, 43,475.12 and 19,573.92 is: 29,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964 : 43,475.12 = 19,573.92 : x
  2. Step 2: Convert to fraction form
    28,964/43,475.12 = 19,573.92/x
  3. Step 3: Cross multiply
    28,964x = 43,475.12 × 19,573.92
  4. Step 4: Simplify right side
    28,964x = 850,978,520.87
  5. Step 5: Solve for x
    x = 850,978,520.87/28,964
  6. Step 6: Final answer
    x = 29,380.56

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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.