Home / 20,899.82-28,842.26-11,468.38

Finding the Fourth Proportional to 20,899.82, 28,842.26 and 11,468.38

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Solution

The fourth proportional to 20,899.82, 28,842.26 and 11,468.38 is: 15,826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899.82 : 28,842.26 = 11,468.38 : x
  2. Step 2: Convert to fraction form
    20,899.82/28,842.26 = 11,468.38/x
  3. Step 3: Cross multiply
    20,899.82x = 28,842.26 × 11,468.38
  4. Step 4: Simplify right side
    20,899.82x = 330,773,997.74
  5. Step 5: Solve for x
    x = 330,773,997.74/20,899.82
  6. Step 6: Final answer
    x = 15,826.64

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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.