Home / 21,680.04-32,519.88-11,153

Finding the Fourth Proportional to 21,680.04, 32,519.88 and 11,153

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Solution

The fourth proportional to 21,680.04, 32,519.88 and 11,153 is: 16,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680.04 : 32,519.88 = 11,153 : x
  2. Step 2: Convert to fraction form
    21,680.04/32,519.88 = 11,153/x
  3. Step 3: Cross multiply
    21,680.04x = 32,519.88 × 11,153
  4. Step 4: Simplify right side
    21,680.04x = 362,694,221.64
  5. Step 5: Solve for x
    x = 362,694,221.64/21,680.04
  6. Step 6: Final answer
    x = 16,729.41

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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.