Home / 21,344.24-29,453.20-13,790.88

Finding the Fourth Proportional to 21,344.24, 29,453.20 and 13,790.88

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Solution

The fourth proportional to 21,344.24, 29,453.20 and 13,790.88 is: 19,030.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.24 : 29,453.20 = 13,790.88 : x
  2. Step 2: Convert to fraction form
    21,344.24/29,453.20 = 13,790.88/x
  3. Step 3: Cross multiply
    21,344.24x = 29,453.20 × 13,790.88
  4. Step 4: Simplify right side
    21,344.24x = 406,185,546.82
  5. Step 5: Solve for x
    x = 406,185,546.82/21,344.24
  6. Step 6: Final answer
    x = 19,030.22

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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.