Home / 39,710.91-54,801.84-21,805.76

Finding the Fourth Proportional to 39,710.91, 54,801.84 and 21,805.76

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Solution

The fourth proportional to 39,710.91, 54,801.84 and 21,805.76 is: 30,092.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,710.91 : 54,801.84 = 21,805.76 : x
  2. Step 2: Convert to fraction form
    39,710.91/54,801.84 = 21,805.76/x
  3. Step 3: Cross multiply
    39,710.91x = 54,801.84 × 21,805.76
  4. Step 4: Simplify right side
    39,710.91x = 1,194,995,496.59
  5. Step 5: Solve for x
    x = 1,194,995,496.59/39,710.91
  6. Step 6: Final answer
    x = 30,092.37

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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.