Home / 21,653.62-29,882.48-12,222.26

Finding the Fourth Proportional to 21,653.62, 29,882.48 and 12,222.26

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Solution

The fourth proportional to 21,653.62, 29,882.48 and 12,222.26 is: 16,866.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,653.62 : 29,882.48 = 12,222.26 : x
  2. Step 2: Convert to fraction form
    21,653.62/29,882.48 = 12,222.26/x
  3. Step 3: Cross multiply
    21,653.62x = 29,882.48 × 12,222.26
  4. Step 4: Simplify right side
    21,653.62x = 365,231,440.00
  5. Step 5: Solve for x
    x = 365,231,440.00/21,653.62
  6. Step 6: Final answer
    x = 16,866.99

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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.