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Finding the Fourth Proportional to 28,757.03, 43,127.03 and 12,952.91

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Solution

The fourth proportional to 28,757.03, 43,127.03 and 12,952.91 is: 19,425.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.03 : 43,127.03 = 12,952.91 : x
  2. Step 2: Convert to fraction form
    28,757.03/43,127.03 = 12,952.91/x
  3. Step 3: Cross multiply
    28,757.03x = 43,127.03 × 12,952.91
  4. Step 4: Simplify right side
    28,757.03x = 558,620,678.36
  5. Step 5: Solve for x
    x = 558,620,678.36/28,757.03
  6. Step 6: Final answer
    x = 19,425.54

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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.