Home / 25,645.48-38,467.92-8,115.28

Finding the Fourth Proportional to 25,645.48, 38,467.92 and 8,115.28

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Solution

The fourth proportional to 25,645.48, 38,467.92 and 8,115.28 is: 12,172.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,645.48 : 38,467.92 = 8,115.28 : x
  2. Step 2: Convert to fraction form
    25,645.48/38,467.92 = 8,115.28/x
  3. Step 3: Cross multiply
    25,645.48x = 38,467.92 × 8,115.28
  4. Step 4: Simplify right side
    25,645.48x = 312,177,941.82
  5. Step 5: Solve for x
    x = 312,177,941.82/25,645.48
  6. Step 6: Final answer
    x = 12,172.83

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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.