Home / 39,073.84-53,921.82-21,169.29

Finding the Fourth Proportional to 39,073.84, 53,921.82 and 21,169.29

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Solution

The fourth proportional to 39,073.84, 53,921.82 and 21,169.29 is: 29,213.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,073.84 : 53,921.82 = 21,169.29 : x
  2. Step 2: Convert to fraction form
    39,073.84/53,921.82 = 21,169.29/x
  3. Step 3: Cross multiply
    39,073.84x = 53,921.82 × 21,169.29
  4. Step 4: Simplify right side
    39,073.84x = 1,141,486,644.91
  5. Step 5: Solve for x
    x = 1,141,486,644.91/39,073.84
  6. Step 6: Final answer
    x = 29,213.58

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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.