Home / 38,126.72-57,175.20-12,821.12

Finding the Fourth Proportional to 38,126.72, 57,175.20 and 12,821.12

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Solution

The fourth proportional to 38,126.72, 57,175.20 and 12,821.12 is: 19,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,126.72 : 57,175.20 = 12,821.12 : x
  2. Step 2: Convert to fraction form
    38,126.72/57,175.20 = 12,821.12/x
  3. Step 3: Cross multiply
    38,126.72x = 57,175.20 × 12,821.12
  4. Step 4: Simplify right side
    38,126.72x = 733,050,100.22
  5. Step 5: Solve for x
    x = 733,050,100.22/38,126.72
  6. Step 6: Final answer
    x = 19,226.68

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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.