Home / 43,378.14-65,071.56-11,788.68

Finding the Fourth Proportional to 43,378.14, 65,071.56 and 11,788.68

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Solution

The fourth proportional to 43,378.14, 65,071.56 and 11,788.68 is: 17,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,378.14 : 65,071.56 = 11,788.68 : x
  2. Step 2: Convert to fraction form
    43,378.14/65,071.56 = 11,788.68/x
  3. Step 3: Cross multiply
    43,378.14x = 65,071.56 × 11,788.68
  4. Step 4: Simplify right side
    43,378.14x = 767,107,797.94
  5. Step 5: Solve for x
    x = 767,107,797.94/43,378.14
  6. Step 6: Final answer
    x = 17,684.20

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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.