Home / 25,291.38-37,918.32-12,131.22

Finding the Fourth Proportional to 25,291.38, 37,918.32 and 12,131.22

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Solution

The fourth proportional to 25,291.38, 37,918.32 and 12,131.22 is: 18,187.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,291.38 : 37,918.32 = 12,131.22 : x
  2. Step 2: Convert to fraction form
    25,291.38/37,918.32 = 12,131.22/x
  3. Step 3: Cross multiply
    25,291.38x = 37,918.32 × 12,131.22
  4. Step 4: Simplify right side
    25,291.38x = 459,995,481.95
  5. Step 5: Solve for x
    x = 459,995,481.95/25,291.38
  6. Step 6: Final answer
    x = 18,187.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.