Home / 21,677.16-32,520.33-7,636.62

Finding the Fourth Proportional to 21,677.16, 32,520.33 and 7,636.62

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Solution

The fourth proportional to 21,677.16, 32,520.33 and 7,636.62 is: 11,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,677.16 : 32,520.33 = 7,636.62 : x
  2. Step 2: Convert to fraction form
    21,677.16/32,520.33 = 7,636.62/x
  3. Step 3: Cross multiply
    21,677.16x = 32,520.33 × 7,636.62
  4. Step 4: Simplify right side
    21,677.16x = 248,345,402.48
  5. Step 5: Solve for x
    x = 248,345,402.48/21,677.16
  6. Step 6: Final answer
    x = 11,456.55

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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.