Home / 21,453.62-29,609.43-12,506.36

Finding the Fourth Proportional to 21,453.62, 29,609.43 and 12,506.36

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Solution

The fourth proportional to 21,453.62, 29,609.43 and 12,506.36 is: 17,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.62 : 29,609.43 = 12,506.36 : x
  2. Step 2: Convert to fraction form
    21,453.62/29,609.43 = 12,506.36/x
  3. Step 3: Cross multiply
    21,453.62x = 29,609.43 × 12,506.36
  4. Step 4: Simplify right side
    21,453.62x = 370,306,190.97
  5. Step 5: Solve for x
    x = 370,306,190.97/21,453.62
  6. Step 6: Final answer
    x = 17,260.78

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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.