Home / 21,164.49-29,201.09-16,674.30

Finding the Fourth Proportional to 21,164.49, 29,201.09 and 16,674.30

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Solution

The fourth proportional to 21,164.49, 29,201.09 and 16,674.30 is: 23,005.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.49 : 29,201.09 = 16,674.30 : x
  2. Step 2: Convert to fraction form
    21,164.49/29,201.09 = 16,674.30/x
  3. Step 3: Cross multiply
    21,164.49x = 29,201.09 × 16,674.30
  4. Step 4: Simplify right side
    21,164.49x = 486,907,651.62
  5. Step 5: Solve for x
    x = 486,907,651.62/21,164.49
  6. Step 6: Final answer
    x = 23,005.88

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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.