Home / 20,208.43-27,889.04-12,250.99

Finding the Fourth Proportional to 20,208.43, 27,889.04 and 12,250.99

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Solution

The fourth proportional to 20,208.43, 27,889.04 and 12,250.99 is: 16,907.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.43 : 27,889.04 = 12,250.99 : x
  2. Step 2: Convert to fraction form
    20,208.43/27,889.04 = 12,250.99/x
  3. Step 3: Cross multiply
    20,208.43x = 27,889.04 × 12,250.99
  4. Step 4: Simplify right side
    20,208.43x = 341,668,288.89
  5. Step 5: Solve for x
    x = 341,668,288.89/20,208.43
  6. Step 6: Final answer
    x = 16,907.22

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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.