Home / 20,104.82-27,719.14-14,369.12

Finding the Fourth Proportional to 20,104.82, 27,719.14 and 14,369.12

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Solution

The fourth proportional to 20,104.82, 27,719.14 and 14,369.12 is: 19,811.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.82 : 27,719.14 = 14,369.12 : x
  2. Step 2: Convert to fraction form
    20,104.82/27,719.14 = 14,369.12/x
  3. Step 3: Cross multiply
    20,104.82x = 27,719.14 × 14,369.12
  4. Step 4: Simplify right side
    20,104.82x = 398,299,648.96
  5. Step 5: Solve for x
    x = 398,299,648.96/20,104.82
  6. Step 6: Final answer
    x = 19,811.15

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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.