Home / 21,530.54-32,310.40-11,673.02

Finding the Fourth Proportional to 21,530.54, 32,310.40 and 11,673.02

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Solution

The fourth proportional to 21,530.54, 32,310.40 and 11,673.02 is: 17,517.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,530.54 : 32,310.40 = 11,673.02 : x
  2. Step 2: Convert to fraction form
    21,530.54/32,310.40 = 11,673.02/x
  3. Step 3: Cross multiply
    21,530.54x = 32,310.40 × 11,673.02
  4. Step 4: Simplify right side
    21,530.54x = 377,159,945.41
  5. Step 5: Solve for x
    x = 377,159,945.41/21,530.54
  6. Step 6: Final answer
    x = 17,517.44

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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.