Home / 25,673.76-38,485.94-8,131.59

Finding the Fourth Proportional to 25,673.76, 38,485.94 and 8,131.59

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Solution

The fourth proportional to 25,673.76, 38,485.94 and 8,131.59 is: 12,189.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,673.76 : 38,485.94 = 8,131.59 : x
  2. Step 2: Convert to fraction form
    25,673.76/38,485.94 = 8,131.59/x
  3. Step 3: Cross multiply
    25,673.76x = 38,485.94 × 8,131.59
  4. Step 4: Simplify right side
    25,673.76x = 312,951,844.19
  5. Step 5: Solve for x
    x = 312,951,844.19/25,673.76
  6. Step 6: Final answer
    x = 12,189.56

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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.