Home / 21,772.64-30,052.46-12,825.30

Finding the Fourth Proportional to 21,772.64, 30,052.46 and 12,825.30

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Solution

The fourth proportional to 21,772.64, 30,052.46 and 12,825.30 is: 17,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,772.64 : 30,052.46 = 12,825.30 : x
  2. Step 2: Convert to fraction form
    21,772.64/30,052.46 = 12,825.30/x
  3. Step 3: Cross multiply
    21,772.64x = 30,052.46 × 12,825.30
  4. Step 4: Simplify right side
    21,772.64x = 385,431,751.11
  5. Step 5: Solve for x
    x = 385,431,751.11/21,772.64
  6. Step 6: Final answer
    x = 17,702.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.