Home / 20,431.14-30,660.83-13,414.51

Finding the Fourth Proportional to 20,431.14, 30,660.83 and 13,414.51

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Solution

The fourth proportional to 20,431.14, 30,660.83 and 13,414.51 is: 20,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,431.14 : 30,660.83 = 13,414.51 : x
  2. Step 2: Convert to fraction form
    20,431.14/30,660.83 = 13,414.51/x
  3. Step 3: Cross multiply
    20,431.14x = 30,660.83 × 13,414.51
  4. Step 4: Simplify right side
    20,431.14x = 411,300,032.20
  5. Step 5: Solve for x
    x = 411,300,032.20/20,431.14
  6. Step 6: Final answer
    x = 20,131.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.