Home / 22,851.45-31,534.79-12,779.78

Finding the Fourth Proportional to 22,851.45, 31,534.79 and 12,779.78

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Solution

The fourth proportional to 22,851.45, 31,534.79 and 12,779.78 is: 17,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,851.45 : 31,534.79 = 12,779.78 : x
  2. Step 2: Convert to fraction form
    22,851.45/31,534.79 = 12,779.78/x
  3. Step 3: Cross multiply
    22,851.45x = 31,534.79 × 12,779.78
  4. Step 4: Simplify right side
    22,851.45x = 403,007,456.97
  5. Step 5: Solve for x
    x = 403,007,456.97/22,851.45
  6. Step 6: Final answer
    x = 17,635.97

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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.