Home / 20,899.44-28,841.58-11,468.88

Finding the Fourth Proportional to 20,899.44, 28,841.58 and 11,468.88

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Solution

The fourth proportional to 20,899.44, 28,841.58 and 11,468.88 is: 15,827.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899.44 : 28,841.58 = 11,468.88 : x
  2. Step 2: Convert to fraction form
    20,899.44/28,841.58 = 11,468.88/x
  3. Step 3: Cross multiply
    20,899.44x = 28,841.58 × 11,468.88
  4. Step 4: Simplify right side
    20,899.44x = 330,780,620.03
  5. Step 5: Solve for x
    x = 330,780,620.03/20,899.44
  6. Step 6: Final answer
    x = 15,827.25

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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.