Home / 20,113.56-27,755.46-12,151.08

Finding the Fourth Proportional to 20,113.56, 27,755.46 and 12,151.08

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Solution

The fourth proportional to 20,113.56, 27,755.46 and 12,151.08 is: 16,767.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.56 : 27,755.46 = 12,151.08 : x
  2. Step 2: Convert to fraction form
    20,113.56/27,755.46 = 12,151.08/x
  3. Step 3: Cross multiply
    20,113.56x = 27,755.46 × 12,151.08
  4. Step 4: Simplify right side
    20,113.56x = 337,258,814.90
  5. Step 5: Solve for x
    x = 337,258,814.90/20,113.56
  6. Step 6: Final answer
    x = 16,767.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.