Home / 21,276.21-31,905.88-7,233.39

Finding the Fourth Proportional to 21,276.21, 31,905.88 and 7,233.39

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Solution

The fourth proportional to 21,276.21, 31,905.88 and 7,233.39 is: 10,847.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.21 : 31,905.88 = 7,233.39 : x
  2. Step 2: Convert to fraction form
    21,276.21/31,905.88 = 7,233.39/x
  3. Step 3: Cross multiply
    21,276.21x = 31,905.88 × 7,233.39
  4. Step 4: Simplify right side
    21,276.21x = 230,787,673.33
  5. Step 5: Solve for x
    x = 230,787,673.33/21,276.21
  6. Step 6: Final answer
    x = 10,847.22

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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.