Home / 29,514.21-40,722.38-18,918.19

Finding the Fourth Proportional to 29,514.21, 40,722.38 and 18,918.19

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Solution

The fourth proportional to 29,514.21, 40,722.38 and 18,918.19 is: 26,102.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,514.21 : 40,722.38 = 18,918.19 : x
  2. Step 2: Convert to fraction form
    29,514.21/40,722.38 = 18,918.19/x
  3. Step 3: Cross multiply
    29,514.21x = 40,722.38 × 18,918.19
  4. Step 4: Simplify right side
    29,514.21x = 770,393,722.09
  5. Step 5: Solve for x
    x = 770,393,722.09/29,514.21
  6. Step 6: Final answer
    x = 26,102.47

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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.