Home / 20,181.40-27,849.89-11,683.88

Finding the Fourth Proportional to 20,181.40, 27,849.89 and 11,683.88

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Solution

The fourth proportional to 20,181.40, 27,849.89 and 11,683.88 is: 16,123.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.40 : 27,849.89 = 11,683.88 : x
  2. Step 2: Convert to fraction form
    20,181.40/27,849.89 = 11,683.88/x
  3. Step 3: Cross multiply
    20,181.40x = 27,849.89 × 11,683.88
  4. Step 4: Simplify right side
    20,181.40x = 325,394,772.77
  5. Step 5: Solve for x
    x = 325,394,772.77/20,181.40
  6. Step 6: Final answer
    x = 16,123.50

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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.