Home / 20,245.16-27,938.36-11,292.43

Finding the Fourth Proportional to 20,245.16, 27,938.36 and 11,292.43

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Solution

The fourth proportional to 20,245.16, 27,938.36 and 11,292.43 is: 15,583.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.16 : 27,938.36 = 11,292.43 : x
  2. Step 2: Convert to fraction form
    20,245.16/27,938.36 = 11,292.43/x
  3. Step 3: Cross multiply
    20,245.16x = 27,938.36 × 11,292.43
  4. Step 4: Simplify right side
    20,245.16x = 315,491,848.31
  5. Step 5: Solve for x
    x = 315,491,848.31/20,245.16
  6. Step 6: Final answer
    x = 15,583.57

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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.