Home / 13,982.22-20,948.73-13,149.79

Finding the Fourth Proportional to 13,982.22, 20,948.73 and 13,149.79

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Solution

The fourth proportional to 13,982.22, 20,948.73 and 13,149.79 is: 19,701.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.22 : 20,948.73 = 13,149.79 : x
  2. Step 2: Convert to fraction form
    13,982.22/20,948.73 = 13,149.79/x
  3. Step 3: Cross multiply
    13,982.22x = 20,948.73 × 13,149.79
  4. Step 4: Simplify right side
    13,982.22x = 275,471,416.42
  5. Step 5: Solve for x
    x = 275,471,416.42/13,982.22
  6. Step 6: Final answer
    x = 19,701.55

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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.