Home / 39,265.45-54,186.83-21,360.94

Finding the Fourth Proportional to 39,265.45, 54,186.83 and 21,360.94

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Solution

The fourth proportional to 39,265.45, 54,186.83 and 21,360.94 is: 29,478.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,265.45 : 54,186.83 = 21,360.94 : x
  2. Step 2: Convert to fraction form
    39,265.45/54,186.83 = 21,360.94/x
  3. Step 3: Cross multiply
    39,265.45x = 54,186.83 × 21,360.94
  4. Step 4: Simplify right side
    39,265.45x = 1,157,481,517.62
  5. Step 5: Solve for x
    x = 1,157,481,517.62/39,265.45
  6. Step 6: Final answer
    x = 29,478.37

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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.