Home / 30,651.54-42,296.52-17,221.74

Finding the Fourth Proportional to 30,651.54, 42,296.52 and 17,221.74

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Solution

The fourth proportional to 30,651.54, 42,296.52 and 17,221.74 is: 23,764.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651.54 : 42,296.52 = 17,221.74 : x
  2. Step 2: Convert to fraction form
    30,651.54/42,296.52 = 17,221.74/x
  3. Step 3: Cross multiply
    30,651.54x = 42,296.52 × 17,221.74
  4. Step 4: Simplify right side
    30,651.54x = 728,419,670.34
  5. Step 5: Solve for x
    x = 728,419,670.34/30,651.54
  6. Step 6: Final answer
    x = 23,764.54

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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.