Home / 22,861.14-31,478.24-20,012.57

Finding the Fourth Proportional to 22,861.14, 31,478.24 and 20,012.57

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Solution

The fourth proportional to 22,861.14, 31,478.24 and 20,012.57 is: 27,555.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,861.14 : 31,478.24 = 20,012.57 : x
  2. Step 2: Convert to fraction form
    22,861.14/31,478.24 = 20,012.57/x
  3. Step 3: Cross multiply
    22,861.14x = 31,478.24 × 20,012.57
  4. Step 4: Simplify right side
    22,861.14x = 629,960,610.20
  5. Step 5: Solve for x
    x = 629,960,610.20/22,861.14
  6. Step 6: Final answer
    x = 27,555.96

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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.