Home / 43,627.19-65,431.44-19,928.03

Finding the Fourth Proportional to 43,627.19, 65,431.44 and 19,928.03

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Solution

The fourth proportional to 43,627.19, 65,431.44 and 19,928.03 is: 29,887.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,627.19 : 65,431.44 = 19,928.03 : x
  2. Step 2: Convert to fraction form
    43,627.19/65,431.44 = 19,928.03/x
  3. Step 3: Cross multiply
    43,627.19x = 65,431.44 × 19,928.03
  4. Step 4: Simplify right side
    43,627.19x = 1,303,919,372.11
  5. Step 5: Solve for x
    x = 1,303,919,372.11/43,627.19
  6. Step 6: Final answer
    x = 29,887.77

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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.