Home / 27,930.42-41,872.01-12,123.57

Finding the Fourth Proportional to 27,930.42, 41,872.01 and 12,123.57

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Solution

The fourth proportional to 27,930.42, 41,872.01 and 12,123.57 is: 18,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,930.42 : 41,872.01 = 12,123.57 : x
  2. Step 2: Convert to fraction form
    27,930.42/41,872.01 = 12,123.57/x
  3. Step 3: Cross multiply
    27,930.42x = 41,872.01 × 12,123.57
  4. Step 4: Simplify right side
    27,930.42x = 507,638,183.66
  5. Step 5: Solve for x
    x = 507,638,183.66/27,930.42
  6. Step 6: Final answer
    x = 18,175.10

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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.