Home / 39,773.72-54,888.29-21,869.48

Finding the Fourth Proportional to 39,773.72, 54,888.29 and 21,869.48

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Solution

The fourth proportional to 39,773.72, 54,888.29 and 21,869.48 is: 30,180.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,773.72 : 54,888.29 = 21,869.48 : x
  2. Step 2: Convert to fraction form
    39,773.72/54,888.29 = 21,869.48/x
  3. Step 3: Cross multiply
    39,773.72x = 54,888.29 × 21,869.48
  4. Step 4: Simplify right side
    39,773.72x = 1,200,377,976.60
  5. Step 5: Solve for x
    x = 1,200,377,976.60/39,773.72
  6. Step 6: Final answer
    x = 30,180.18

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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.