Home / 28,380.58-42,505.26-27,396.43

Finding the Fourth Proportional to 28,380.58, 42,505.26 and 27,396.43

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Solution

The fourth proportional to 28,380.58, 42,505.26 and 27,396.43 is: 41,031.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380.58 : 42,505.26 = 27,396.43 : x
  2. Step 2: Convert to fraction form
    28,380.58/42,505.26 = 27,396.43/x
  3. Step 3: Cross multiply
    28,380.58x = 42,505.26 × 27,396.43
  4. Step 4: Simplify right side
    28,380.58x = 1,164,492,380.22
  5. Step 5: Solve for x
    x = 1,164,492,380.22/28,380.58
  6. Step 6: Final answer
    x = 41,031.31

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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.