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Finding the Fourth Proportional to 28,893.80, 43,347.35 and 12,254.48

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Solution

The fourth proportional to 28,893.80, 43,347.35 and 12,254.48 is: 18,384.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.80 : 43,347.35 = 12,254.48 : x
  2. Step 2: Convert to fraction form
    28,893.80/43,347.35 = 12,254.48/x
  3. Step 3: Cross multiply
    28,893.80x = 43,347.35 × 12,254.48
  4. Step 4: Simplify right side
    28,893.80x = 531,198,955.62
  5. Step 5: Solve for x
    x = 531,198,955.62/28,893.80
  6. Step 6: Final answer
    x = 18,384.53

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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.