Home / 21,248.10-31,851.09-11,896.02

Finding the Fourth Proportional to 21,248.10, 31,851.09 and 11,896.02

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Solution

The fourth proportional to 21,248.10, 31,851.09 and 11,896.02 is: 17,832.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.10 : 31,851.09 = 11,896.02 : x
  2. Step 2: Convert to fraction form
    21,248.10/31,851.09 = 11,896.02/x
  3. Step 3: Cross multiply
    21,248.10x = 31,851.09 × 11,896.02
  4. Step 4: Simplify right side
    21,248.10x = 378,901,203.66
  5. Step 5: Solve for x
    x = 378,901,203.66/21,248.10
  6. Step 6: Final answer
    x = 17,832.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.