Home / 22,180.96-30,609.51-13,679.68

Finding the Fourth Proportional to 22,180.96, 30,609.51 and 13,679.68

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Solution

The fourth proportional to 22,180.96, 30,609.51 and 13,679.68 is: 18,877.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,180.96 : 30,609.51 = 13,679.68 : x
  2. Step 2: Convert to fraction form
    22,180.96/30,609.51 = 13,679.68/x
  3. Step 3: Cross multiply
    22,180.96x = 30,609.51 × 13,679.68
  4. Step 4: Simplify right side
    22,180.96x = 418,728,301.76
  5. Step 5: Solve for x
    x = 418,728,301.76/22,180.96
  6. Step 6: Final answer
    x = 18,877.83

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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.