Home / 43,730.20-65,562.90-18,749.80

Finding the Fourth Proportional to 43,730.20, 65,562.90 and 18,749.80

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Solution

The fourth proportional to 43,730.20, 65,562.90 and 18,749.80 is: 28,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,730.20 : 65,562.90 = 18,749.80 : x
  2. Step 2: Convert to fraction form
    43,730.20/65,562.90 = 18,749.80/x
  3. Step 3: Cross multiply
    43,730.20x = 65,562.90 × 18,749.80
  4. Step 4: Simplify right side
    43,730.20x = 1,229,291,262.42
  5. Step 5: Solve for x
    x = 1,229,291,262.42/43,730.20
  6. Step 6: Final answer
    x = 28,110.81

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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.