Home / 21,918.30-32,876.73-8,767.14

Finding the Fourth Proportional to 21,918.30, 32,876.73 and 8,767.14

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Solution

The fourth proportional to 21,918.30, 32,876.73 and 8,767.14 is: 13,150.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,918.30 : 32,876.73 = 8,767.14 : x
  2. Step 2: Convert to fraction form
    21,918.30/32,876.73 = 8,767.14/x
  3. Step 3: Cross multiply
    21,918.30x = 32,876.73 × 8,767.14
  4. Step 4: Simplify right side
    21,918.30x = 288,234,894.65
  5. Step 5: Solve for x
    x = 288,234,894.65/21,918.30
  6. Step 6: Final answer
    x = 13,150.42

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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.