Home / 20,160.51-27,821.61-11,662.47

Finding the Fourth Proportional to 20,160.51, 27,821.61 and 11,662.47

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Solution

The fourth proportional to 20,160.51, 27,821.61 and 11,662.47 is: 16,094.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.51 : 27,821.61 = 11,662.47 : x
  2. Step 2: Convert to fraction form
    20,160.51/27,821.61 = 11,662.47/x
  3. Step 3: Cross multiply
    20,160.51x = 27,821.61 × 11,662.47
  4. Step 4: Simplify right side
    20,160.51x = 324,468,691.98
  5. Step 5: Solve for x
    x = 324,468,691.98/20,160.51
  6. Step 6: Final answer
    x = 16,094.27

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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.