Home / 20,089.70-27,723.99-11,137.34

Finding the Fourth Proportional to 20,089.70, 27,723.99 and 11,137.34

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Solution

The fourth proportional to 20,089.70, 27,723.99 and 11,137.34 is: 15,369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.70 : 27,723.99 = 11,137.34 : x
  2. Step 2: Convert to fraction form
    20,089.70/27,723.99 = 11,137.34/x
  3. Step 3: Cross multiply
    20,089.70x = 27,723.99 × 11,137.34
  4. Step 4: Simplify right side
    20,089.70x = 308,771,502.79
  5. Step 5: Solve for x
    x = 308,771,502.79/20,089.70
  6. Step 6: Final answer
    x = 15,369.64

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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.