Home / 18,971.21-28,456.52-5,823.29

Finding the Fourth Proportional to 18,971.21, 28,456.52 and 5,823.29

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Solution

The fourth proportional to 18,971.21, 28,456.52 and 5,823.29 is: 8,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.21 : 28,456.52 = 5,823.29 : x
  2. Step 2: Convert to fraction form
    18,971.21/28,456.52 = 5,823.29/x
  3. Step 3: Cross multiply
    18,971.21x = 28,456.52 × 5,823.29
  4. Step 4: Simplify right side
    18,971.21x = 165,710,610.38
  5. Step 5: Solve for x
    x = 165,710,610.38/18,971.21
  6. Step 6: Final answer
    x = 8,734.85

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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.