Home / 20,135.36-27,785.17-11,638.03

Finding the Fourth Proportional to 20,135.36, 27,785.17 and 11,638.03

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Solution

The fourth proportional to 20,135.36, 27,785.17 and 11,638.03 is: 16,059.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.36 : 27,785.17 = 11,638.03 : x
  2. Step 2: Convert to fraction form
    20,135.36/27,785.17 = 11,638.03/x
  3. Step 3: Cross multiply
    20,135.36x = 27,785.17 × 11,638.03
  4. Step 4: Simplify right side
    20,135.36x = 323,364,669.47
  5. Step 5: Solve for x
    x = 323,364,669.47/20,135.36
  6. Step 6: Final answer
    x = 16,059.54

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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.