Home / 25,418.70-38,141.05-12,106.75

Finding the Fourth Proportional to 25,418.70, 38,141.05 and 12,106.75

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Solution

The fourth proportional to 25,418.70, 38,141.05 and 12,106.75 is: 18,166.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418.70 : 38,141.05 = 12,106.75 : x
  2. Step 2: Convert to fraction form
    25,418.70/38,141.05 = 12,106.75/x
  3. Step 3: Cross multiply
    25,418.70x = 38,141.05 × 12,106.75
  4. Step 4: Simplify right side
    25,418.70x = 461,764,157.09
  5. Step 5: Solve for x
    x = 461,764,157.09/25,418.70
  6. Step 6: Final answer
    x = 18,166.32

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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.