Home / 36,512.64-54,681.75-18,699.66

Finding the Fourth Proportional to 36,512.64, 54,681.75 and 18,699.66

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Solution

The fourth proportional to 36,512.64, 54,681.75 and 18,699.66 is: 28,004.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,512.64 : 54,681.75 = 18,699.66 : x
  2. Step 2: Convert to fraction form
    36,512.64/54,681.75 = 18,699.66/x
  3. Step 3: Cross multiply
    36,512.64x = 54,681.75 × 18,699.66
  4. Step 4: Simplify right side
    36,512.64x = 1,022,530,133.21
  5. Step 5: Solve for x
    x = 1,022,530,133.21/36,512.64
  6. Step 6: Final answer
    x = 28,004.83

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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.