Home / 21,419.23-32,118.07-8,936.02

Finding the Fourth Proportional to 21,419.23, 32,118.07 and 8,936.02

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Solution

The fourth proportional to 21,419.23, 32,118.07 and 8,936.02 is: 13,399.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,419.23 : 32,118.07 = 8,936.02 : x
  2. Step 2: Convert to fraction form
    21,419.23/32,118.07 = 8,936.02/x
  3. Step 3: Cross multiply
    21,419.23x = 32,118.07 × 8,936.02
  4. Step 4: Simplify right side
    21,419.23x = 287,007,715.88
  5. Step 5: Solve for x
    x = 287,007,715.88/21,419.23
  6. Step 6: Final answer
    x = 13,399.53

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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.