Home / 20,074.74-27,704.82-11,123.07

Finding the Fourth Proportional to 20,074.74, 27,704.82 and 11,123.07

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Solution

The fourth proportional to 20,074.74, 27,704.82 and 11,123.07 is: 15,350.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.74 : 27,704.82 = 11,123.07 : x
  2. Step 2: Convert to fraction form
    20,074.74/27,704.82 = 11,123.07/x
  3. Step 3: Cross multiply
    20,074.74x = 27,704.82 × 11,123.07
  4. Step 4: Simplify right side
    20,074.74x = 308,162,683.29
  5. Step 5: Solve for x
    x = 308,162,683.29/20,074.74
  6. Step 6: Final answer
    x = 15,350.77

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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.