Home / 30,079.45-41,514.42-18,144.51

Finding the Fourth Proportional to 30,079.45, 41,514.42 and 18,144.51

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Solution

The fourth proportional to 30,079.45, 41,514.42 and 18,144.51 is: 25,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,079.45 : 41,514.42 = 18,144.51 : x
  2. Step 2: Convert to fraction form
    30,079.45/41,514.42 = 18,144.51/x
  3. Step 3: Cross multiply
    30,079.45x = 41,514.42 × 18,144.51
  4. Step 4: Simplify right side
    30,079.45x = 753,258,721.20
  5. Step 5: Solve for x
    x = 753,258,721.20/30,079.45
  6. Step 6: Final answer
    x = 25,042.30

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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.