Home / 25,454.41-38,182.64-12,120.54

Finding the Fourth Proportional to 25,454.41, 38,182.64 and 12,120.54

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Solution

The fourth proportional to 25,454.41, 38,182.64 and 12,120.54 is: 18,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,454.41 : 38,182.64 = 12,120.54 : x
  2. Step 2: Convert to fraction form
    25,454.41/38,182.64 = 12,120.54/x
  3. Step 3: Cross multiply
    25,454.41x = 38,182.64 × 12,120.54
  4. Step 4: Simplify right side
    25,454.41x = 462,794,215.43
  5. Step 5: Solve for x
    x = 462,794,215.43/25,454.41
  6. Step 6: Final answer
    x = 18,181.30

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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.