Home / 20,201.24-27,877.09-11,248.55

Finding the Fourth Proportional to 20,201.24, 27,877.09 and 11,248.55

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Solution

The fourth proportional to 20,201.24, 27,877.09 and 11,248.55 is: 15,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.24 : 27,877.09 = 11,248.55 : x
  2. Step 2: Convert to fraction form
    20,201.24/27,877.09 = 11,248.55/x
  3. Step 3: Cross multiply
    20,201.24x = 27,877.09 × 11,248.55
  4. Step 4: Simplify right side
    20,201.24x = 313,576,840.72
  5. Step 5: Solve for x
    x = 313,576,840.72/20,201.24
  6. Step 6: Final answer
    x = 15,522.65

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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.