Home / 21,751.03-30,018.52-12,192.54

Finding the Fourth Proportional to 21,751.03, 30,018.52 and 12,192.54

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Solution

The fourth proportional to 21,751.03, 30,018.52 and 12,192.54 is: 16,826.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.03 : 30,018.52 = 12,192.54 : x
  2. Step 2: Convert to fraction form
    21,751.03/30,018.52 = 12,192.54/x
  3. Step 3: Cross multiply
    21,751.03x = 30,018.52 × 12,192.54
  4. Step 4: Simplify right side
    21,751.03x = 366,002,005.84
  5. Step 5: Solve for x
    x = 366,002,005.84/21,751.03
  6. Step 6: Final answer
    x = 16,826.88

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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.