Home / 27,935.01-41,878.90-12,128.12

Finding the Fourth Proportional to 27,935.01, 41,878.90 and 12,128.12

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Solution

The fourth proportional to 27,935.01, 41,878.90 and 12,128.12 is: 18,181.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,935.01 : 41,878.90 = 12,128.12 : x
  2. Step 2: Convert to fraction form
    27,935.01/41,878.90 = 12,128.12/x
  3. Step 3: Cross multiply
    27,935.01x = 41,878.90 × 12,128.12
  4. Step 4: Simplify right side
    27,935.01x = 507,912,324.67
  5. Step 5: Solve for x
    x = 507,912,324.67/27,935.01
  6. Step 6: Final answer
    x = 18,181.93

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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.