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Finding the Fourth Proportional to 36,958.60, 51,001.78 and 20,191.60

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Solution

The fourth proportional to 36,958.60, 51,001.78 and 20,191.60 is: 27,863.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,958.60 : 51,001.78 = 20,191.60 : x
  2. Step 2: Convert to fraction form
    36,958.60/51,001.78 = 20,191.60/x
  3. Step 3: Cross multiply
    36,958.60x = 51,001.78 × 20,191.60
  4. Step 4: Simplify right side
    36,958.60x = 1,029,807,541.05
  5. Step 5: Solve for x
    x = 1,029,807,541.05/36,958.60
  6. Step 6: Final answer
    x = 27,863.81

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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.