Home / 25,427.44-38,132.52-12,942.64

Finding the Fourth Proportional to 25,427.44, 38,132.52 and 12,942.64

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Solution

The fourth proportional to 25,427.44, 38,132.52 and 12,942.64 is: 19,409.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,427.44 : 38,132.52 = 12,942.64 : x
  2. Step 2: Convert to fraction form
    25,427.44/38,132.52 = 12,942.64/x
  3. Step 3: Cross multiply
    25,427.44x = 38,132.52 × 12,942.64
  4. Step 4: Simplify right side
    25,427.44x = 493,535,478.65
  5. Step 5: Solve for x
    x = 493,535,478.65/25,427.44
  6. Step 6: Final answer
    x = 19,409.56

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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.