Home / 21,276.33-31,914.48-9,575.88

Finding the Fourth Proportional to 21,276.33, 31,914.48 and 9,575.88

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Solution

The fourth proportional to 21,276.33, 31,914.48 and 9,575.88 is: 14,363.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.33 : 31,914.48 = 9,575.88 : x
  2. Step 2: Convert to fraction form
    21,276.33/31,914.48 = 9,575.88/x
  3. Step 3: Cross multiply
    21,276.33x = 31,914.48 × 9,575.88
  4. Step 4: Simplify right side
    21,276.33x = 305,609,230.74
  5. Step 5: Solve for x
    x = 305,609,230.74/21,276.33
  6. Step 6: Final answer
    x = 14,363.81

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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.