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Finding the Fourth Proportional to 36,171.76, 49,921.76 and 21,064.68

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Solution

The fourth proportional to 36,171.76, 49,921.76 and 21,064.68 is: 29,072.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,171.76 : 49,921.76 = 21,064.68 : x
  2. Step 2: Convert to fraction form
    36,171.76/49,921.76 = 21,064.68/x
  3. Step 3: Cross multiply
    36,171.76x = 49,921.76 × 21,064.68
  4. Step 4: Simplify right side
    36,171.76x = 1,051,585,899.44
  5. Step 5: Solve for x
    x = 1,051,585,899.44/36,171.76
  6. Step 6: Final answer
    x = 29,072.01

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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.