Home / 22,108.38-30,518.97-13,156.71

Finding the Fourth Proportional to 22,108.38, 30,518.97 and 13,156.71

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Solution

The fourth proportional to 22,108.38, 30,518.97 and 13,156.71 is: 18,161.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,108.38 : 30,518.97 = 13,156.71 : x
  2. Step 2: Convert to fraction form
    22,108.38/30,518.97 = 13,156.71/x
  3. Step 3: Cross multiply
    22,108.38x = 30,518.97 × 13,156.71
  4. Step 4: Simplify right side
    22,108.38x = 401,529,237.79
  5. Step 5: Solve for x
    x = 401,529,237.79/22,108.38
  6. Step 6: Final answer
    x = 18,161.86

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Half scale
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Double scale
Find fourth proportional to 22,109.38, 30,520.35 and 13,157.71
Similar ratio
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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.