Home / 21,425.25-29,567.25-11,993.61

Finding the Fourth Proportional to 21,425.25, 29,567.25 and 11,993.61

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Solution

The fourth proportional to 21,425.25, 29,567.25 and 11,993.61 is: 16,551.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.25 : 29,567.25 = 11,993.61 : x
  2. Step 2: Convert to fraction form
    21,425.25/29,567.25 = 11,993.61/x
  3. Step 3: Cross multiply
    21,425.25x = 29,567.25 × 11,993.61
  4. Step 4: Simplify right side
    21,425.25x = 354,618,065.27
  5. Step 5: Solve for x
    x = 354,618,065.27/21,425.25
  6. Step 6: Final answer
    x = 16,551.41

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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.