Home / 22,126.86-30,535.08-12,190.86

Finding the Fourth Proportional to 22,126.86, 30,535.08 and 12,190.86

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Solution

The fourth proportional to 22,126.86, 30,535.08 and 12,190.86 is: 16,823.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,126.86 : 30,535.08 = 12,190.86 : x
  2. Step 2: Convert to fraction form
    22,126.86/30,535.08 = 12,190.86/x
  3. Step 3: Cross multiply
    22,126.86x = 30,535.08 × 12,190.86
  4. Step 4: Simplify right side
    22,126.86x = 372,248,885.37
  5. Step 5: Solve for x
    x = 372,248,885.37/22,126.86
  6. Step 6: Final answer
    x = 16,823.39

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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.