Home / 36,905.40-55,366.89-11,945.45

Finding the Fourth Proportional to 36,905.40, 55,366.89 and 11,945.45

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Solution

The fourth proportional to 36,905.40, 55,366.89 and 11,945.45 is: 17,921.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,905.40 : 55,366.89 = 11,945.45 : x
  2. Step 2: Convert to fraction form
    36,905.40/55,366.89 = 11,945.45/x
  3. Step 3: Cross multiply
    36,905.40x = 55,366.89 × 11,945.45
  4. Step 4: Simplify right side
    36,905.40x = 661,382,416.15
  5. Step 5: Solve for x
    x = 661,382,416.15/36,905.40
  6. Step 6: Final answer
    x = 17,921.02

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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.