Home / 20,277.60-27,982.22-11,324.87

Finding the Fourth Proportional to 20,277.60, 27,982.22 and 11,324.87

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Solution

The fourth proportional to 20,277.60, 27,982.22 and 11,324.87 is: 15,627.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.60 : 27,982.22 = 11,324.87 : x
  2. Step 2: Convert to fraction form
    20,277.60/27,982.22 = 11,324.87/x
  3. Step 3: Cross multiply
    20,277.60x = 27,982.22 × 11,324.87
  4. Step 4: Simplify right side
    20,277.60x = 316,895,003.81
  5. Step 5: Solve for x
    x = 316,895,003.81/20,277.60
  6. Step 6: Final answer
    x = 15,627.84

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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.