Home / 30,493.25-45,692.64-21,151.43

Finding the Fourth Proportional to 30,493.25, 45,692.64 and 21,151.43

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Solution

The fourth proportional to 30,493.25, 45,692.64 and 21,151.43 is: 31,694.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,493.25 : 45,692.64 = 21,151.43 : x
  2. Step 2: Convert to fraction form
    30,493.25/45,692.64 = 21,151.43/x
  3. Step 3: Cross multiply
    30,493.25x = 45,692.64 × 21,151.43
  4. Step 4: Simplify right side
    30,493.25x = 966,464,676.48
  5. Step 5: Solve for x
    x = 966,464,676.48/30,493.25
  6. Step 6: Final answer
    x = 31,694.38

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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.