Home / 21,468.39-29,625.35-11,907.54

Finding the Fourth Proportional to 21,468.39, 29,625.35 and 11,907.54

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Solution

The fourth proportional to 21,468.39, 29,625.35 and 11,907.54 is: 16,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,468.39 : 29,625.35 = 11,907.54 : x
  2. Step 2: Convert to fraction form
    21,468.39/29,625.35 = 11,907.54/x
  3. Step 3: Cross multiply
    21,468.39x = 29,625.35 × 11,907.54
  4. Step 4: Simplify right side
    21,468.39x = 352,764,980.60
  5. Step 5: Solve for x
    x = 352,764,980.60/21,468.39
  6. Step 6: Final answer
    x = 16,431.83

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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.