Home / 21,769.97-30,042.92-12,338.33

Finding the Fourth Proportional to 21,769.97, 30,042.92 and 12,338.33

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Solution

The fourth proportional to 21,769.97, 30,042.92 and 12,338.33 is: 17,027.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,769.97 : 30,042.92 = 12,338.33 : x
  2. Step 2: Convert to fraction form
    21,769.97/30,042.92 = 12,338.33/x
  3. Step 3: Cross multiply
    21,769.97x = 30,042.92 × 12,338.33
  4. Step 4: Simplify right side
    21,769.97x = 370,679,461.12
  5. Step 5: Solve for x
    x = 370,679,461.12/21,769.97
  6. Step 6: Final answer
    x = 17,027.10

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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.