Home / 43,781.31-65,629.71-14,179.05

Finding the Fourth Proportional to 43,781.31, 65,629.71 and 14,179.05

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Solution

The fourth proportional to 43,781.31, 65,629.71 and 14,179.05 is: 21,254.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,781.31 : 65,629.71 = 14,179.05 : x
  2. Step 2: Convert to fraction form
    43,781.31/65,629.71 = 14,179.05/x
  3. Step 3: Cross multiply
    43,781.31x = 65,629.71 × 14,179.05
  4. Step 4: Simplify right side
    43,781.31x = 930,566,939.58
  5. Step 5: Solve for x
    x = 930,566,939.58/43,781.31
  6. Step 6: Final answer
    x = 21,254.89

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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.