Home / 22,229.19-30,675.85-12,157.60

Finding the Fourth Proportional to 22,229.19, 30,675.85 and 12,157.60

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Solution

The fourth proportional to 22,229.19, 30,675.85 and 12,157.60 is: 16,777.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,229.19 : 30,675.85 = 12,157.60 : x
  2. Step 2: Convert to fraction form
    22,229.19/30,675.85 = 12,157.60/x
  3. Step 3: Cross multiply
    22,229.19x = 30,675.85 × 12,157.60
  4. Step 4: Simplify right side
    22,229.19x = 372,944,652.47
  5. Step 5: Solve for x
    x = 372,944,652.47/22,229.19
  6. Step 6: Final answer
    x = 16,777.25

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Half scale
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Double scale
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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.