Home / 20,126.43-27,775.05-11,052.21

Finding the Fourth Proportional to 20,126.43, 27,775.05 and 11,052.21

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Solution

The fourth proportional to 20,126.43, 27,775.05 and 11,052.21 is: 15,252.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.43 : 27,775.05 = 11,052.21 : x
  2. Step 2: Convert to fraction form
    20,126.43/27,775.05 = 11,052.21/x
  3. Step 3: Cross multiply
    20,126.43x = 27,775.05 × 11,052.21
  4. Step 4: Simplify right side
    20,126.43x = 306,975,685.36
  5. Step 5: Solve for x
    x = 306,975,685.36/20,126.43
  6. Step 6: Final answer
    x = 15,252.37

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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.