Home / 19,682.20-27,132.78-14,958.28

Finding the Fourth Proportional to 19,682.20, 27,132.78 and 14,958.28

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Solution

The fourth proportional to 19,682.20, 27,132.78 and 14,958.28 is: 20,620.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,682.20 : 27,132.78 = 14,958.28 : x
  2. Step 2: Convert to fraction form
    19,682.20/27,132.78 = 14,958.28/x
  3. Step 3: Cross multiply
    19,682.20x = 27,132.78 × 14,958.28
  4. Step 4: Simplify right side
    19,682.20x = 405,859,720.42
  5. Step 5: Solve for x
    x = 405,859,720.42/19,682.20
  6. Step 6: Final answer
    x = 20,620.65

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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.