Home / 25,489.95-38,256.81-12,179.37

Finding the Fourth Proportional to 25,489.95, 38,256.81 and 12,179.37

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Solution

The fourth proportional to 25,489.95, 38,256.81 and 12,179.37 is: 18,279.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,489.95 : 38,256.81 = 12,179.37 : x
  2. Step 2: Convert to fraction form
    25,489.95/38,256.81 = 12,179.37/x
  3. Step 3: Cross multiply
    25,489.95x = 38,256.81 × 12,179.37
  4. Step 4: Simplify right side
    25,489.95x = 465,943,844.01
  5. Step 5: Solve for x
    x = 465,943,844.01/25,489.95
  6. Step 6: Final answer
    x = 18,279.51

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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.