Home / 20,201.35-27,877.80-11,248.96

Finding the Fourth Proportional to 20,201.35, 27,877.80 and 11,248.96

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Solution

The fourth proportional to 20,201.35, 27,877.80 and 11,248.96 is: 15,523.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.35 : 27,877.80 = 11,248.96 : x
  2. Step 2: Convert to fraction form
    20,201.35/27,877.80 = 11,248.96/x
  3. Step 3: Cross multiply
    20,201.35x = 27,877.80 × 11,248.96
  4. Step 4: Simplify right side
    20,201.35x = 313,596,284.60
  5. Step 5: Solve for x
    x = 313,596,284.60/20,201.35
  6. Step 6: Final answer
    x = 15,523.53

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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.