Home / 21,524.49-29,704.46-13,028.18

Finding the Fourth Proportional to 21,524.49, 29,704.46 and 13,028.18

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Solution

The fourth proportional to 21,524.49, 29,704.46 and 13,028.18 is: 17,979.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,524.49 : 29,704.46 = 13,028.18 : x
  2. Step 2: Convert to fraction form
    21,524.49/29,704.46 = 13,028.18/x
  3. Step 3: Cross multiply
    21,524.49x = 29,704.46 × 13,028.18
  4. Step 4: Simplify right side
    21,524.49x = 386,994,838.02
  5. Step 5: Solve for x
    x = 386,994,838.02/21,524.49
  6. Step 6: Final answer
    x = 17,979.28

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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.