Home / 36,129.18-49,859.15-20,214.66

Finding the Fourth Proportional to 36,129.18, 49,859.15 and 20,214.66

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Solution

The fourth proportional to 36,129.18, 49,859.15 and 20,214.66 is: 27,896.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,129.18 : 49,859.15 = 20,214.66 : x
  2. Step 2: Convert to fraction form
    36,129.18/49,859.15 = 20,214.66/x
  3. Step 3: Cross multiply
    36,129.18x = 49,859.15 × 20,214.66
  4. Step 4: Simplify right side
    36,129.18x = 1,007,885,640.49
  5. Step 5: Solve for x
    x = 1,007,885,640.49/36,129.18
  6. Step 6: Final answer
    x = 27,896.72

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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.