Home / 21,934.56-30,267.36-12,982.44

Finding the Fourth Proportional to 21,934.56, 30,267.36 and 12,982.44

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Solution

The fourth proportional to 21,934.56, 30,267.36 and 12,982.44 is: 17,914.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.56 : 30,267.36 = 12,982.44 : x
  2. Step 2: Convert to fraction form
    21,934.56/30,267.36 = 12,982.44/x
  3. Step 3: Cross multiply
    21,934.56x = 30,267.36 × 12,982.44
  4. Step 4: Simplify right side
    21,934.56x = 392,944,185.16
  5. Step 5: Solve for x
    x = 392,944,185.16/21,934.56
  6. Step 6: Final answer
    x = 17,914.39

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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.