Home / 43,537.40-65,305.82-21,021.80

Finding the Fourth Proportional to 43,537.40, 65,305.82 and 21,021.80

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Solution

The fourth proportional to 43,537.40, 65,305.82 and 21,021.80 is: 31,532.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,537.40 : 65,305.82 = 21,021.80 : x
  2. Step 2: Convert to fraction form
    43,537.40/65,305.82 = 21,021.80/x
  3. Step 3: Cross multiply
    43,537.40x = 65,305.82 × 21,021.80
  4. Step 4: Simplify right side
    43,537.40x = 1,372,845,886.88
  5. Step 5: Solve for x
    x = 1,372,845,886.88/43,537.40
  6. Step 6: Final answer
    x = 31,532.56

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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.