Home / 43,728.60-65,576.70-14,147.40

Finding the Fourth Proportional to 43,728.60, 65,576.70 and 14,147.40

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Solution

The fourth proportional to 43,728.60, 65,576.70 and 14,147.40 is: 21,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,728.60 : 65,576.70 = 14,147.40 : x
  2. Step 2: Convert to fraction form
    43,728.60/65,576.70 = 14,147.40/x
  3. Step 3: Cross multiply
    43,728.60x = 65,576.70 × 14,147.40
  4. Step 4: Simplify right side
    43,728.60x = 927,739,805.58
  5. Step 5: Solve for x
    x = 927,739,805.58/43,728.60
  6. Step 6: Final answer
    x = 21,215.86

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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.