Home / 45,427.91-62,687.39-28,431.44

Finding the Fourth Proportional to 45,427.91, 62,687.39 and 28,431.44

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Solution

The fourth proportional to 45,427.91, 62,687.39 and 28,431.44 is: 39,233.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,427.91 : 62,687.39 = 28,431.44 : x
  2. Step 2: Convert to fraction form
    45,427.91/62,687.39 = 28,431.44/x
  3. Step 3: Cross multiply
    45,427.91x = 62,687.39 × 28,431.44
  4. Step 4: Simplify right side
    45,427.91x = 1,782,292,311.95
  5. Step 5: Solve for x
    x = 1,782,292,311.95/45,427.91
  6. Step 6: Final answer
    x = 39,233.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.