Home / 21,939.68-32,841.27-11,919.37

Finding the Fourth Proportional to 21,939.68, 32,841.27 and 11,919.37

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Solution

The fourth proportional to 21,939.68, 32,841.27 and 11,919.37 is: 17,841.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,939.68 : 32,841.27 = 11,919.37 : x
  2. Step 2: Convert to fraction form
    21,939.68/32,841.27 = 11,919.37/x
  3. Step 3: Cross multiply
    21,939.68x = 32,841.27 × 11,919.37
  4. Step 4: Simplify right side
    21,939.68x = 391,447,248.40
  5. Step 5: Solve for x
    x = 391,447,248.40/21,939.68
  6. Step 6: Final answer
    x = 17,841.98

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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.