Home / 20,122.12-27,763.59-12,057.09

Finding the Fourth Proportional to 20,122.12, 27,763.59 and 12,057.09

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Solution

The fourth proportional to 20,122.12, 27,763.59 and 12,057.09 is: 16,635.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.12 : 27,763.59 = 12,057.09 : x
  2. Step 2: Convert to fraction form
    20,122.12/27,763.59 = 12,057.09/x
  3. Step 3: Cross multiply
    20,122.12x = 27,763.59 × 12,057.09
  4. Step 4: Simplify right side
    20,122.12x = 334,748,103.35
  5. Step 5: Solve for x
    x = 334,748,103.35/20,122.12
  6. Step 6: Final answer
    x = 16,635.83

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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.