Home / 28,991.26-43,503.30-12,349.56

Finding the Fourth Proportional to 28,991.26, 43,503.30 and 12,349.56

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Solution

The fourth proportional to 28,991.26, 43,503.30 and 12,349.56 is: 18,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.26 : 43,503.30 = 12,349.56 : x
  2. Step 2: Convert to fraction form
    28,991.26/43,503.30 = 12,349.56/x
  3. Step 3: Cross multiply
    28,991.26x = 43,503.30 × 12,349.56
  4. Step 4: Simplify right side
    28,991.26x = 537,246,613.55
  5. Step 5: Solve for x
    x = 537,246,613.55/28,991.26
  6. Step 6: Final answer
    x = 18,531.33

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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.