Home / 39,270.41-54,193.82-21,365.70

Finding the Fourth Proportional to 39,270.41, 54,193.82 and 21,365.70

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Solution

The fourth proportional to 39,270.41, 54,193.82 and 21,365.70 is: 29,485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,270.41 : 54,193.82 = 21,365.70 : x
  2. Step 2: Convert to fraction form
    39,270.41/54,193.82 = 21,365.70/x
  3. Step 3: Cross multiply
    39,270.41x = 54,193.82 × 21,365.70
  4. Step 4: Simplify right side
    39,270.41x = 1,157,888,899.97
  5. Step 5: Solve for x
    x = 1,157,888,899.97/39,270.41
  6. Step 6: Final answer
    x = 29,485.02

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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.