Home / 22,611.42-31,203.99-12,540.06

Finding the Fourth Proportional to 22,611.42, 31,203.99 and 12,540.06

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Solution

The fourth proportional to 22,611.42, 31,203.99 and 12,540.06 is: 17,305.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.42 : 31,203.99 = 12,540.06 : x
  2. Step 2: Convert to fraction form
    22,611.42/31,203.99 = 12,540.06/x
  3. Step 3: Cross multiply
    22,611.42x = 31,203.99 × 12,540.06
  4. Step 4: Simplify right side
    22,611.42x = 391,299,906.84
  5. Step 5: Solve for x
    x = 391,299,906.84/22,611.42
  6. Step 6: Final answer
    x = 17,305.41

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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.