Home / 29,268.09-40,389.62-15,839.03

Finding the Fourth Proportional to 29,268.09, 40,389.62 and 15,839.03

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Solution

The fourth proportional to 29,268.09, 40,389.62 and 15,839.03 is: 21,857.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,268.09 : 40,389.62 = 15,839.03 : x
  2. Step 2: Convert to fraction form
    29,268.09/40,389.62 = 15,839.03/x
  3. Step 3: Cross multiply
    29,268.09x = 40,389.62 × 15,839.03
  4. Step 4: Simplify right side
    29,268.09x = 639,732,121.73
  5. Step 5: Solve for x
    x = 639,732,121.73/29,268.09
  6. Step 6: Final answer
    x = 21,857.67

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Why These Related Problems?

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