Home / 39,625.13-54,684.52-21,721.50

Finding the Fourth Proportional to 39,625.13, 54,684.52 and 21,721.50

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Solution

The fourth proportional to 39,625.13, 54,684.52 and 21,721.50 is: 29,976.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,625.13 : 54,684.52 = 21,721.50 : x
  2. Step 2: Convert to fraction form
    39,625.13/54,684.52 = 21,721.50/x
  3. Step 3: Cross multiply
    39,625.13x = 54,684.52 × 21,721.50
  4. Step 4: Simplify right side
    39,625.13x = 1,187,829,746.88
  5. Step 5: Solve for x
    x = 1,187,829,746.88/39,625.13
  6. Step 6: Final answer
    x = 29,976.68

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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.