Home / 21,811.69-32,729.88-9,330.60

Finding the Fourth Proportional to 21,811.69, 32,729.88 and 9,330.60

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Solution

The fourth proportional to 21,811.69, 32,729.88 and 9,330.60 is: 14,001.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811.69 : 32,729.88 = 9,330.60 : x
  2. Step 2: Convert to fraction form
    21,811.69/32,729.88 = 9,330.60/x
  3. Step 3: Cross multiply
    21,811.69x = 32,729.88 × 9,330.60
  4. Step 4: Simplify right side
    21,811.69x = 305,389,576.05
  5. Step 5: Solve for x
    x = 305,389,576.05/21,811.69
  6. Step 6: Final answer
    x = 14,001.19

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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.