Home / 21,052.89-29,052.96-11,621.43

Finding the Fourth Proportional to 21,052.89, 29,052.96 and 11,621.43

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Solution

The fourth proportional to 21,052.89, 29,052.96 and 11,621.43 is: 16,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.89 : 29,052.96 = 11,621.43 : x
  2. Step 2: Convert to fraction form
    21,052.89/29,052.96 = 11,621.43/x
  3. Step 3: Cross multiply
    21,052.89x = 29,052.96 × 11,621.43
  4. Step 4: Simplify right side
    21,052.89x = 337,636,940.93
  5. Step 5: Solve for x
    x = 337,636,940.93/21,052.89
  6. Step 6: Final answer
    x = 16,037.56

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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.