Home / 21,324.13-29,427.21-11,763.76

Finding the Fourth Proportional to 21,324.13, 29,427.21 and 11,763.76

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Solution

The fourth proportional to 21,324.13, 29,427.21 and 11,763.76 is: 16,233.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.13 : 29,427.21 = 11,763.76 : x
  2. Step 2: Convert to fraction form
    21,324.13/29,427.21 = 11,763.76/x
  3. Step 3: Cross multiply
    21,324.13x = 29,427.21 × 11,763.76
  4. Step 4: Simplify right side
    21,324.13x = 346,174,635.91
  5. Step 5: Solve for x
    x = 346,174,635.91/21,324.13
  6. Step 6: Final answer
    x = 16,233.94

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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.