Home / 43,431.52-65,157.89-13,849.36

Finding the Fourth Proportional to 43,431.52, 65,157.89 and 13,849.36

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Solution

The fourth proportional to 43,431.52, 65,157.89 and 13,849.36 is: 20,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,431.52 : 65,157.89 = 13,849.36 : x
  2. Step 2: Convert to fraction form
    43,431.52/65,157.89 = 13,849.36/x
  3. Step 3: Cross multiply
    43,431.52x = 65,157.89 × 13,849.36
  4. Step 4: Simplify right side
    43,431.52x = 902,395,075.45
  5. Step 5: Solve for x
    x = 902,395,075.45/43,431.52
  6. Step 6: Final answer
    x = 20,777.42

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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.