Home / 22,607.32-31,198.64-13,172.44

Finding the Fourth Proportional to 22,607.32, 31,198.64 and 13,172.44

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Solution

The fourth proportional to 22,607.32, 31,198.64 and 13,172.44 is: 18,178.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,607.32 : 31,198.64 = 13,172.44 : x
  2. Step 2: Convert to fraction form
    22,607.32/31,198.64 = 13,172.44/x
  3. Step 3: Cross multiply
    22,607.32x = 31,198.64 × 13,172.44
  4. Step 4: Simplify right side
    22,607.32x = 410,962,213.48
  5. Step 5: Solve for x
    x = 410,962,213.48/22,607.32
  6. Step 6: Final answer
    x = 18,178.28

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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.