Home / 28,743.21-43,118.87-12,092.85

Finding the Fourth Proportional to 28,743.21, 43,118.87 and 12,092.85

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Solution

The fourth proportional to 28,743.21, 43,118.87 and 12,092.85 is: 18,140.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,743.21 : 43,118.87 = 12,092.85 : x
  2. Step 2: Convert to fraction form
    28,743.21/43,118.87 = 12,092.85/x
  3. Step 3: Cross multiply
    28,743.21x = 43,118.87 × 12,092.85
  4. Step 4: Simplify right side
    28,743.21x = 521,429,966.62
  5. Step 5: Solve for x
    x = 521,429,966.62/28,743.21
  6. Step 6: Final answer
    x = 18,140.98

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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.