Home / 43,669.98-65,457.88-21,133.05

Finding the Fourth Proportional to 43,669.98, 65,457.88 and 21,133.05

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Solution

The fourth proportional to 43,669.98, 65,457.88 and 21,133.05 is: 31,676.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,669.98 : 65,457.88 = 21,133.05 : x
  2. Step 2: Convert to fraction form
    43,669.98/65,457.88 = 21,133.05/x
  3. Step 3: Cross multiply
    43,669.98x = 65,457.88 × 21,133.05
  4. Step 4: Simplify right side
    43,669.98x = 1,383,324,650.93
  5. Step 5: Solve for x
    x = 1,383,324,650.93/43,669.98
  6. Step 6: Final answer
    x = 31,676.79

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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.