Home / 43,490.67-65,231.88-13,900.56

Finding the Fourth Proportional to 43,490.67, 65,231.88 and 13,900.56

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Solution

The fourth proportional to 43,490.67, 65,231.88 and 13,900.56 is: 20,849.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,490.67 : 65,231.88 = 13,900.56 : x
  2. Step 2: Convert to fraction form
    43,490.67/65,231.88 = 13,900.56/x
  3. Step 3: Cross multiply
    43,490.67x = 65,231.88 × 13,900.56
  4. Step 4: Simplify right side
    43,490.67x = 906,759,661.85
  5. Step 5: Solve for x
    x = 906,759,661.85/43,490.67
  6. Step 6: Final answer
    x = 20,849.52

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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.