Home / 21,419.97-29,568.83-16,116.09

Finding the Fourth Proportional to 21,419.97, 29,568.83 and 16,116.09

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Solution

The fourth proportional to 21,419.97, 29,568.83 and 16,116.09 is: 22,247.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,419.97 : 29,568.83 = 16,116.09 : x
  2. Step 2: Convert to fraction form
    21,419.97/29,568.83 = 16,116.09/x
  3. Step 3: Cross multiply
    21,419.97x = 29,568.83 × 16,116.09
  4. Step 4: Simplify right side
    21,419.97x = 476,533,844.89
  5. Step 5: Solve for x
    x = 476,533,844.89/21,419.97
  6. Step 6: Final answer
    x = 22,247.18

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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.