Home / 28,770.53-43,147.26-12,966.44

Finding the Fourth Proportional to 28,770.53, 43,147.26 and 12,966.44

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Solution

The fourth proportional to 28,770.53, 43,147.26 and 12,966.44 is: 19,445.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,770.53 : 43,147.26 = 12,966.44 : x
  2. Step 2: Convert to fraction form
    28,770.53/43,147.26 = 12,966.44/x
  3. Step 3: Cross multiply
    28,770.53x = 43,147.26 × 12,966.44
  4. Step 4: Simplify right side
    28,770.53x = 559,466,142.22
  5. Step 5: Solve for x
    x = 559,466,142.22/28,770.53
  6. Step 6: Final answer
    x = 19,445.81

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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.