Home / 39,853.13-54,996.28-21,947.94

Finding the Fourth Proportional to 39,853.13, 54,996.28 and 21,947.94

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Solution

The fourth proportional to 39,853.13, 54,996.28 and 21,947.94 is: 30,287.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,853.13 : 54,996.28 = 21,947.94 : x
  2. Step 2: Convert to fraction form
    39,853.13/54,996.28 = 21,947.94/x
  3. Step 3: Cross multiply
    39,853.13x = 54,996.28 × 21,947.94
  4. Step 4: Simplify right side
    39,853.13x = 1,207,054,998.79
  5. Step 5: Solve for x
    x = 1,207,054,998.79/39,853.13
  6. Step 6: Final answer
    x = 30,287.59

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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.