Home / 43,747.20-65,596.80-21,511.68

Finding the Fourth Proportional to 43,747.20, 65,596.80 and 21,511.68

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Solution

The fourth proportional to 43,747.20, 65,596.80 and 21,511.68 is: 32,255.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,747.20 : 65,596.80 = 21,511.68 : x
  2. Step 2: Convert to fraction form
    43,747.20/65,596.80 = 21,511.68/x
  3. Step 3: Cross multiply
    43,747.20x = 65,596.80 × 21,511.68
  4. Step 4: Simplify right side
    43,747.20x = 1,411,097,370.62
  5. Step 5: Solve for x
    x = 1,411,097,370.62/43,747.20
  6. Step 6: Final answer
    x = 32,255.72

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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.