Home / 28,729.70-43,101.03-11,862.26

Finding the Fourth Proportional to 28,729.70, 43,101.03 and 11,862.26

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Solution

The fourth proportional to 28,729.70, 43,101.03 and 11,862.26 is: 17,796.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,729.70 : 43,101.03 = 11,862.26 : x
  2. Step 2: Convert to fraction form
    28,729.70/43,101.03 = 11,862.26/x
  3. Step 3: Cross multiply
    28,729.70x = 43,101.03 × 11,862.26
  4. Step 4: Simplify right side
    28,729.70x = 511,275,624.13
  5. Step 5: Solve for x
    x = 511,275,624.13/28,729.70
  6. Step 6: Final answer
    x = 17,796.07

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Why These Related Problems?

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