Home / 26,115.55-39,180.08-11,321.05

Finding the Fourth Proportional to 26,115.55, 39,180.08 and 11,321.05

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Solution

The fourth proportional to 26,115.55, 39,180.08 and 11,321.05 is: 16,984.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,115.55 : 39,180.08 = 11,321.05 : x
  2. Step 2: Convert to fraction form
    26,115.55/39,180.08 = 11,321.05/x
  3. Step 3: Cross multiply
    26,115.55x = 39,180.08 × 11,321.05
  4. Step 4: Simplify right side
    26,115.55x = 443,559,644.68
  5. Step 5: Solve for x
    x = 443,559,644.68/26,115.55
  6. Step 6: Final answer
    x = 16,984.50

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.