Home / 21,052.64-29,052.68-11,621.21

Finding the Fourth Proportional to 21,052.64, 29,052.68 and 11,621.21

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Solution

The fourth proportional to 21,052.64, 29,052.68 and 11,621.21 is: 16,037.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.64 : 29,052.68 = 11,621.21 : x
  2. Step 2: Convert to fraction form
    21,052.64/29,052.68 = 11,621.21/x
  3. Step 3: Cross multiply
    21,052.64x = 29,052.68 × 11,621.21
  4. Step 4: Simplify right side
    21,052.64x = 337,627,091.97
  5. Step 5: Solve for x
    x = 337,627,091.97/21,052.64
  6. Step 6: Final answer
    x = 16,037.28

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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.