Home / 20,625.57-28,463.94-11,672.91

Finding the Fourth Proportional to 20,625.57, 28,463.94 and 11,672.91

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Solution

The fourth proportional to 20,625.57, 28,463.94 and 11,672.91 is: 16,108.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.57 : 28,463.94 = 11,672.91 : x
  2. Step 2: Convert to fraction form
    20,625.57/28,463.94 = 11,672.91/x
  3. Step 3: Cross multiply
    20,625.57x = 28,463.94 × 11,672.91
  4. Step 4: Simplify right side
    20,625.57x = 332,257,009.87
  5. Step 5: Solve for x
    x = 332,257,009.87/20,625.57
  6. Step 6: Final answer
    x = 16,108.99

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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.