Home / 21,046.18-31,518.99-11,662.92

Finding the Fourth Proportional to 21,046.18, 31,518.99 and 11,662.92

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Solution

The fourth proportional to 21,046.18, 31,518.99 and 11,662.92 is: 17,466.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046.18 : 31,518.99 = 11,662.92 : x
  2. Step 2: Convert to fraction form
    21,046.18/31,518.99 = 11,662.92/x
  3. Step 3: Cross multiply
    21,046.18x = 31,518.99 × 11,662.92
  4. Step 4: Simplify right side
    21,046.18x = 367,603,458.85
  5. Step 5: Solve for x
    x = 367,603,458.85/21,046.18
  6. Step 6: Final answer
    x = 17,466.52

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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.