Home / 39,305.50-54,241.24-21,400.46

Finding the Fourth Proportional to 39,305.50, 54,241.24 and 21,400.46

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Solution

The fourth proportional to 39,305.50, 54,241.24 and 21,400.46 is: 29,532.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,305.50 : 54,241.24 = 21,400.46 : x
  2. Step 2: Convert to fraction form
    39,305.50/54,241.24 = 21,400.46/x
  3. Step 3: Cross multiply
    39,305.50x = 54,241.24 × 21,400.46
  4. Step 4: Simplify right side
    39,305.50x = 1,160,787,486.97
  5. Step 5: Solve for x
    x = 1,160,787,486.97/39,305.50
  6. Step 6: Final answer
    x = 29,532.44

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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.