Home / 38,822.13-58,218.80-13,855.50

Finding the Fourth Proportional to 38,822.13, 58,218.80 and 13,855.50

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Solution

The fourth proportional to 38,822.13, 58,218.80 and 13,855.50 is: 20,778.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,822.13 : 58,218.80 = 13,855.50 : x
  2. Step 2: Convert to fraction form
    38,822.13/58,218.80 = 13,855.50/x
  3. Step 3: Cross multiply
    38,822.13x = 58,218.80 × 13,855.50
  4. Step 4: Simplify right side
    38,822.13x = 806,650,514.12
  5. Step 5: Solve for x
    x = 806,650,514.12/38,822.13
  6. Step 6: Final answer
    x = 20,778.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.