Home / 20,197.64-27,869.31-11,243.90

Finding the Fourth Proportional to 20,197.64, 27,869.31 and 11,243.90

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Solution

The fourth proportional to 20,197.64, 27,869.31 and 11,243.90 is: 15,514.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.64 : 27,869.31 = 11,243.90 : x
  2. Step 2: Convert to fraction form
    20,197.64/27,869.31 = 11,243.90/x
  3. Step 3: Cross multiply
    20,197.64x = 27,869.31 × 11,243.90
  4. Step 4: Simplify right side
    20,197.64x = 313,359,595.36
  5. Step 5: Solve for x
    x = 313,359,595.36/20,197.64
  6. Step 6: Final answer
    x = 15,514.67

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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.