Home / 43,519.60-65,286.15-18,559.72

Finding the Fourth Proportional to 43,519.60, 65,286.15 and 18,559.72

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Solution

The fourth proportional to 43,519.60, 65,286.15 and 18,559.72 is: 27,842.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,519.60 : 65,286.15 = 18,559.72 : x
  2. Step 2: Convert to fraction form
    43,519.60/65,286.15 = 18,559.72/x
  3. Step 3: Cross multiply
    43,519.60x = 65,286.15 × 18,559.72
  4. Step 4: Simplify right side
    43,519.60x = 1,211,692,663.88
  5. Step 5: Solve for x
    x = 1,211,692,663.88/43,519.60
  6. Step 6: Final answer
    x = 27,842.46

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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.