Home / 21,396.96-32,125.68-11,571.12

Finding the Fourth Proportional to 21,396.96, 32,125.68 and 11,571.12

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Solution

The fourth proportional to 21,396.96, 32,125.68 and 11,571.12 is: 17,373.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.96 : 32,125.68 = 11,571.12 : x
  2. Step 2: Convert to fraction form
    21,396.96/32,125.68 = 11,571.12/x
  3. Step 3: Cross multiply
    21,396.96x = 32,125.68 × 11,571.12
  4. Step 4: Simplify right side
    21,396.96x = 371,730,098.36
  5. Step 5: Solve for x
    x = 371,730,098.36/21,396.96
  6. Step 6: Final answer
    x = 17,373.03

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1.5x scale

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.