Home / 20,114.89-27,757.83-11,162.77

Finding the Fourth Proportional to 20,114.89, 27,757.83 and 11,162.77

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Solution

The fourth proportional to 20,114.89, 27,757.83 and 11,162.77 is: 15,404.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.89 : 27,757.83 = 11,162.77 : x
  2. Step 2: Convert to fraction form
    20,114.89/27,757.83 = 11,162.77/x
  3. Step 3: Cross multiply
    20,114.89x = 27,757.83 × 11,162.77
  4. Step 4: Simplify right side
    20,114.89x = 309,854,271.99
  5. Step 5: Solve for x
    x = 309,854,271.99/20,114.89
  6. Step 6: Final answer
    x = 15,404.22

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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.