Home / 20,255.88-27,958.98-11,759.91

Finding the Fourth Proportional to 20,255.88, 27,958.98 and 11,759.91

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Solution

The fourth proportional to 20,255.88, 27,958.98 and 11,759.91 is: 16,232.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.88 : 27,958.98 = 11,759.91 : x
  2. Step 2: Convert to fraction form
    20,255.88/27,958.98 = 11,759.91/x
  3. Step 3: Cross multiply
    20,255.88x = 27,958.98 × 11,759.91
  4. Step 4: Simplify right side
    20,255.88x = 328,795,088.49
  5. Step 5: Solve for x
    x = 328,795,088.49/20,255.88
  6. Step 6: Final answer
    x = 16,232.08

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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.