Home / 21,751.23-30,021.02-14,198.79

Finding the Fourth Proportional to 21,751.23, 30,021.02 and 14,198.79

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Solution

The fourth proportional to 21,751.23, 30,021.02 and 14,198.79 is: 19,597.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.23 : 30,021.02 = 14,198.79 : x
  2. Step 2: Convert to fraction form
    21,751.23/30,021.02 = 14,198.79/x
  3. Step 3: Cross multiply
    21,751.23x = 30,021.02 × 14,198.79
  4. Step 4: Simplify right side
    21,751.23x = 426,262,087.57
  5. Step 5: Solve for x
    x = 426,262,087.57/21,751.23
  6. Step 6: Final answer
    x = 19,597.15

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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.