Home / 39,755.41-54,861.81-21,852.08

Finding the Fourth Proportional to 39,755.41, 54,861.81 and 21,852.08

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Solution

The fourth proportional to 39,755.41, 54,861.81 and 21,852.08 is: 30,155.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,755.41 : 54,861.81 = 21,852.08 : x
  2. Step 2: Convert to fraction form
    39,755.41/54,861.81 = 21,852.08/x
  3. Step 3: Cross multiply
    39,755.41x = 54,861.81 × 21,852.08
  4. Step 4: Simplify right side
    39,755.41x = 1,198,844,510.54
  5. Step 5: Solve for x
    x = 1,198,844,510.54/39,755.41
  6. Step 6: Final answer
    x = 30,155.51

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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.