Home / 20,074.82-27,700.43-11,122.85

Finding the Fourth Proportional to 20,074.82, 27,700.43 and 11,122.85

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Solution

The fourth proportional to 20,074.82, 27,700.43 and 11,122.85 is: 15,347.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.82 : 27,700.43 = 11,122.85 : x
  2. Step 2: Convert to fraction form
    20,074.82/27,700.43 = 11,122.85/x
  3. Step 3: Cross multiply
    20,074.82x = 27,700.43 × 11,122.85
  4. Step 4: Simplify right side
    20,074.82x = 308,107,533.71
  5. Step 5: Solve for x
    x = 308,107,533.71/20,074.82
  6. Step 6: Final answer
    x = 15,347.96

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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.