Home / 20,452.14-28,231.89-12,896.88

Finding the Fourth Proportional to 20,452.14, 28,231.89 and 12,896.88

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Solution

The fourth proportional to 20,452.14, 28,231.89 and 12,896.88 is: 17,802.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.14 : 28,231.89 = 12,896.88 : x
  2. Step 2: Convert to fraction form
    20,452.14/28,231.89 = 12,896.88/x
  3. Step 3: Cross multiply
    20,452.14x = 28,231.89 × 12,896.88
  4. Step 4: Simplify right side
    20,452.14x = 364,103,297.50
  5. Step 5: Solve for x
    x = 364,103,297.50/20,452.14
  6. Step 6: Final answer
    x = 17,802.70

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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.