Home / 30,651.53-42,296.49-17,221.73

Finding the Fourth Proportional to 30,651.53, 42,296.49 and 17,221.73

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Solution

The fourth proportional to 30,651.53, 42,296.49 and 17,221.73 is: 23,764.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651.53 : 42,296.49 = 17,221.73 : x
  2. Step 2: Convert to fraction form
    30,651.53/42,296.49 = 17,221.73/x
  3. Step 3: Cross multiply
    30,651.53x = 42,296.49 × 17,221.73
  4. Step 4: Simplify right side
    30,651.53x = 728,418,519.25
  5. Step 5: Solve for x
    x = 728,418,519.25/30,651.53
  6. Step 6: Final answer
    x = 23,764.51

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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.