Home / 20,123.58-27,783.99-17,992.20

Finding the Fourth Proportional to 20,123.58, 27,783.99 and 17,992.20

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Solution

The fourth proportional to 20,123.58, 27,783.99 and 17,992.20 is: 24,841.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123.58 : 27,783.99 = 17,992.20 : x
  2. Step 2: Convert to fraction form
    20,123.58/27,783.99 = 17,992.20/x
  3. Step 3: Cross multiply
    20,123.58x = 27,783.99 × 17,992.20
  4. Step 4: Simplify right side
    20,123.58x = 499,895,104.88
  5. Step 5: Solve for x
    x = 499,895,104.88/20,123.58
  6. Step 6: Final answer
    x = 24,841.26

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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.