Home / 21,474.68-32,221.29-11,620.91

Finding the Fourth Proportional to 21,474.68, 32,221.29 and 11,620.91

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Solution

The fourth proportional to 21,474.68, 32,221.29 and 11,620.91 is: 17,436.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.68 : 32,221.29 = 11,620.91 : x
  2. Step 2: Convert to fraction form
    21,474.68/32,221.29 = 11,620.91/x
  3. Step 3: Cross multiply
    21,474.68x = 32,221.29 × 11,620.91
  4. Step 4: Simplify right side
    21,474.68x = 374,440,711.17
  5. Step 5: Solve for x
    x = 374,440,711.17/21,474.68
  6. Step 6: Final answer
    x = 17,436.38

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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.