Home / 20,053.07-27,672.90-11,100.38

Finding the Fourth Proportional to 20,053.07, 27,672.90 and 11,100.38

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Solution

The fourth proportional to 20,053.07, 27,672.90 and 11,100.38 is: 15,318.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,053.07 : 27,672.90 = 11,100.38 : x
  2. Step 2: Convert to fraction form
    20,053.07/27,672.90 = 11,100.38/x
  3. Step 3: Cross multiply
    20,053.07x = 27,672.90 × 11,100.38
  4. Step 4: Simplify right side
    20,053.07x = 307,179,705.70
  5. Step 5: Solve for x
    x = 307,179,705.70/20,053.07
  6. Step 6: Final answer
    x = 15,318.34

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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.