Home / 31,274.10-43,140.75-18,514.84

Finding the Fourth Proportional to 31,274.10, 43,140.75 and 18,514.84

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Solution

The fourth proportional to 31,274.10, 43,140.75 and 18,514.84 is: 25,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,274.10 : 43,140.75 = 18,514.84 : x
  2. Step 2: Convert to fraction form
    31,274.10/43,140.75 = 18,514.84/x
  3. Step 3: Cross multiply
    31,274.10x = 43,140.75 × 18,514.84
  4. Step 4: Simplify right side
    31,274.10x = 798,743,775.45
  5. Step 5: Solve for x
    x = 798,743,775.45/31,274.10
  6. Step 6: Final answer
    x = 25,540.11

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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.