Home / 43,515.58-65,261.54-11,918.02

Finding the Fourth Proportional to 43,515.58, 65,261.54 and 11,918.02

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Solution

The fourth proportional to 43,515.58, 65,261.54 and 11,918.02 is: 17,873.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,515.58 : 65,261.54 = 11,918.02 : x
  2. Step 2: Convert to fraction form
    43,515.58/65,261.54 = 11,918.02/x
  3. Step 3: Cross multiply
    43,515.58x = 65,261.54 × 11,918.02
  4. Step 4: Simplify right side
    43,515.58x = 777,788,247.68
  5. Step 5: Solve for x
    x = 777,788,247.68/43,515.58
  6. Step 6: Final answer
    x = 17,873.79

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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.