Home / 26,131.93-39,168.72-11,318.65

Finding the Fourth Proportional to 26,131.93, 39,168.72 and 11,318.65

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Solution

The fourth proportional to 26,131.93, 39,168.72 and 11,318.65 is: 16,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,131.93 : 39,168.72 = 11,318.65 : x
  2. Step 2: Convert to fraction form
    26,131.93/39,168.72 = 11,318.65/x
  3. Step 3: Cross multiply
    26,131.93x = 39,168.72 × 11,318.65
  4. Step 4: Simplify right side
    26,131.93x = 443,337,032.63
  5. Step 5: Solve for x
    x = 443,337,032.63/26,131.93
  6. Step 6: Final answer
    x = 16,965.34

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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.