Home / 22,157.35-30,561.50-13,197.94

Finding the Fourth Proportional to 22,157.35, 30,561.50 and 13,197.94

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Solution

The fourth proportional to 22,157.35, 30,561.50 and 13,197.94 is: 18,203.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,157.35 : 30,561.50 = 13,197.94 : x
  2. Step 2: Convert to fraction form
    22,157.35/30,561.50 = 13,197.94/x
  3. Step 3: Cross multiply
    22,157.35x = 30,561.50 × 13,197.94
  4. Step 4: Simplify right side
    22,157.35x = 403,348,799.90
  5. Step 5: Solve for x
    x = 403,348,799.90/22,157.35
  6. Step 6: Final answer
    x = 18,203.84

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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.