Home / 20,212.70-27,893.52-11,719.77

Finding the Fourth Proportional to 20,212.70, 27,893.52 and 11,719.77

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Solution

The fourth proportional to 20,212.70, 27,893.52 and 11,719.77 is: 16,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.70 : 27,893.52 = 11,719.77 : x
  2. Step 2: Convert to fraction form
    20,212.70/27,893.52 = 11,719.77/x
  3. Step 3: Cross multiply
    20,212.70x = 27,893.52 × 11,719.77
  4. Step 4: Simplify right side
    20,212.70x = 326,905,534.29
  5. Step 5: Solve for x
    x = 326,905,534.29/20,212.70
  6. Step 6: Final answer
    x = 16,173.28

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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.