Home / 43,319.76-64,982.04-13,740

Finding the Fourth Proportional to 43,319.76, 64,982.04 and 13,740

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Solution

The fourth proportional to 43,319.76, 64,982.04 and 13,740 is: 20,610.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,319.76 : 64,982.04 = 13,740 : x
  2. Step 2: Convert to fraction form
    43,319.76/64,982.04 = 13,740/x
  3. Step 3: Cross multiply
    43,319.76x = 64,982.04 × 13,740
  4. Step 4: Simplify right side
    43,319.76x = 892,853,229.60
  5. Step 5: Solve for x
    x = 892,853,229.60/43,319.76
  6. Step 6: Final answer
    x = 20,610.76

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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.