Home / 21,479.67-32,208.48-8,996.28

Finding the Fourth Proportional to 21,479.67, 32,208.48 and 8,996.28

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Solution

The fourth proportional to 21,479.67, 32,208.48 and 8,996.28 is: 13,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,479.67 : 32,208.48 = 8,996.28 : x
  2. Step 2: Convert to fraction form
    21,479.67/32,208.48 = 8,996.28/x
  3. Step 3: Cross multiply
    21,479.67x = 32,208.48 × 8,996.28
  4. Step 4: Simplify right side
    21,479.67x = 289,756,504.45
  5. Step 5: Solve for x
    x = 289,756,504.45/21,479.67
  6. Step 6: Final answer
    x = 13,489.80

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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.