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Finding the Fourth Proportional to 36,291.70, 50,102.31 and 21,953.89

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Solution

The fourth proportional to 36,291.70, 50,102.31 and 21,953.89 is: 30,308.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,291.70 : 50,102.31 = 21,953.89 : x
  2. Step 2: Convert to fraction form
    36,291.70/50,102.31 = 21,953.89/x
  3. Step 3: Cross multiply
    36,291.70x = 50,102.31 × 21,953.89
  4. Step 4: Simplify right side
    36,291.70x = 1,099,940,602.49
  5. Step 5: Solve for x
    x = 1,099,940,602.49/36,291.70
  6. Step 6: Final answer
    x = 30,308.32

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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.