Home / 22,563.55-31,137.32-12,491.77

Finding the Fourth Proportional to 22,563.55, 31,137.32 and 12,491.77

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Solution

The fourth proportional to 22,563.55, 31,137.32 and 12,491.77 is: 17,238.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,563.55 : 31,137.32 = 12,491.77 : x
  2. Step 2: Convert to fraction form
    22,563.55/31,137.32 = 12,491.77/x
  3. Step 3: Cross multiply
    22,563.55x = 31,137.32 × 12,491.77
  4. Step 4: Simplify right side
    22,563.55x = 388,960,310.01
  5. Step 5: Solve for x
    x = 388,960,310.01/22,563.55
  6. Step 6: Final answer
    x = 17,238.44

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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.