Home / 22,119.26-30,519.78-13,165.02

Finding the Fourth Proportional to 22,119.26, 30,519.78 and 13,165.02

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Solution

The fourth proportional to 22,119.26, 30,519.78 and 13,165.02 is: 18,164.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,119.26 : 30,519.78 = 13,165.02 : x
  2. Step 2: Convert to fraction form
    22,119.26/30,519.78 = 13,165.02/x
  3. Step 3: Cross multiply
    22,119.26x = 30,519.78 × 13,165.02
  4. Step 4: Simplify right side
    22,119.26x = 401,793,514.10
  5. Step 5: Solve for x
    x = 401,793,514.10/22,119.26
  6. Step 6: Final answer
    x = 18,164.88

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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.