Home / 21,383.75-29,510.25-11,952.29

Finding the Fourth Proportional to 21,383.75, 29,510.25 and 11,952.29

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Solution

The fourth proportional to 21,383.75, 29,510.25 and 11,952.29 is: 16,494.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.75 : 29,510.25 = 11,952.29 : x
  2. Step 2: Convert to fraction form
    21,383.75/29,510.25 = 11,952.29/x
  3. Step 3: Cross multiply
    21,383.75x = 29,510.25 × 11,952.29
  4. Step 4: Simplify right side
    21,383.75x = 352,715,065.97
  5. Step 5: Solve for x
    x = 352,715,065.97/21,383.75
  6. Step 6: Final answer
    x = 16,494.54

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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.