Home / 18,822.65-28,238.31-6,342.35

Finding the Fourth Proportional to 18,822.65, 28,238.31 and 6,342.35

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Solution

The fourth proportional to 18,822.65, 28,238.31 and 6,342.35 is: 9,514.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822.65 : 28,238.31 = 6,342.35 : x
  2. Step 2: Convert to fraction form
    18,822.65/28,238.31 = 6,342.35/x
  3. Step 3: Cross multiply
    18,822.65x = 28,238.31 × 6,342.35
  4. Step 4: Simplify right side
    18,822.65x = 179,097,104.24
  5. Step 5: Solve for x
    x = 179,097,104.24/18,822.65
  6. Step 6: Final answer
    x = 9,514.98

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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.