Home / 39,169.78-54,054.20-21,264.59

Finding the Fourth Proportional to 39,169.78, 54,054.20 and 21,264.59

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Solution

The fourth proportional to 39,169.78, 54,054.20 and 21,264.59 is: 29,345.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,169.78 : 54,054.20 = 21,264.59 : x
  2. Step 2: Convert to fraction form
    39,169.78/54,054.20 = 21,264.59/x
  3. Step 3: Cross multiply
    39,169.78x = 54,054.20 × 21,264.59
  4. Step 4: Simplify right side
    39,169.78x = 1,149,440,589.07
  5. Step 5: Solve for x
    x = 1,149,440,589.07/39,169.78
  6. Step 6: Final answer
    x = 29,345.09

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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.