Home / 43,488.55-65,236.92-13,899.36

Finding the Fourth Proportional to 43,488.55, 65,236.92 and 13,899.36

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Solution

The fourth proportional to 43,488.55, 65,236.92 and 13,899.36 is: 20,850.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,488.55 : 65,236.92 = 13,899.36 : x
  2. Step 2: Convert to fraction form
    43,488.55/65,236.92 = 13,899.36/x
  3. Step 3: Cross multiply
    43,488.55x = 65,236.92 × 13,899.36
  4. Step 4: Simplify right side
    43,488.55x = 906,751,110.19
  5. Step 5: Solve for x
    x = 906,751,110.19/43,488.55
  6. Step 6: Final answer
    x = 20,850.34

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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.