Home / 20,204.79-27,855.43-14,146.88

Finding the Fourth Proportional to 20,204.79, 27,855.43 and 14,146.88

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Solution

The fourth proportional to 20,204.79, 27,855.43 and 14,146.88 is: 19,503.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.79 : 27,855.43 = 14,146.88 : x
  2. Step 2: Convert to fraction form
    20,204.79/27,855.43 = 14,146.88/x
  3. Step 3: Cross multiply
    20,204.79x = 27,855.43 × 14,146.88
  4. Step 4: Simplify right side
    20,204.79x = 394,067,425.01
  5. Step 5: Solve for x
    x = 394,067,425.01/20,204.79
  6. Step 6: Final answer
    x = 19,503.66

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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.