Home / 39,726.22-54,819.48-21,821.98

Finding the Fourth Proportional to 39,726.22, 54,819.48 and 21,821.98

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Solution

The fourth proportional to 39,726.22, 54,819.48 and 21,821.98 is: 30,112.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,726.22 : 54,819.48 = 21,821.98 : x
  2. Step 2: Convert to fraction form
    39,726.22/54,819.48 = 21,821.98/x
  3. Step 3: Cross multiply
    39,726.22x = 54,819.48 × 21,821.98
  4. Step 4: Simplify right side
    39,726.22x = 1,196,269,596.17
  5. Step 5: Solve for x
    x = 1,196,269,596.17/39,726.22
  6. Step 6: Final answer
    x = 30,112.85

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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.