Home / 20,022.09-27,631.70-11,069.39

Finding the Fourth Proportional to 20,022.09, 27,631.70 and 11,069.39

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Solution

The fourth proportional to 20,022.09, 27,631.70 and 11,069.39 is: 15,276.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.09 : 27,631.70 = 11,069.39 : x
  2. Step 2: Convert to fraction form
    20,022.09/27,631.70 = 11,069.39/x
  3. Step 3: Cross multiply
    20,022.09x = 27,631.70 × 11,069.39
  4. Step 4: Simplify right side
    20,022.09x = 305,866,118.91
  5. Step 5: Solve for x
    x = 305,866,118.91/20,022.09
  6. Step 6: Final answer
    x = 15,276.44

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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.