Home / 21,292.22-29,382.62-11,860.58

Finding the Fourth Proportional to 21,292.22, 29,382.62 and 11,860.58

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Solution

The fourth proportional to 21,292.22, 29,382.62 and 11,860.58 is: 16,367.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.22 : 29,382.62 = 11,860.58 : x
  2. Step 2: Convert to fraction form
    21,292.22/29,382.62 = 11,860.58/x
  3. Step 3: Cross multiply
    21,292.22x = 29,382.62 × 11,860.58
  4. Step 4: Simplify right side
    21,292.22x = 348,494,915.12
  5. Step 5: Solve for x
    x = 348,494,915.12/21,292.22
  6. Step 6: Final answer
    x = 16,367.24

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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.