Home / 21,938.68-32,839.77-11,918.37

Finding the Fourth Proportional to 21,938.68, 32,839.77 and 11,918.37

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Solution

The fourth proportional to 21,938.68, 32,839.77 and 11,918.37 is: 17,840.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,938.68 : 32,839.77 = 11,918.37 : x
  2. Step 2: Convert to fraction form
    21,938.68/32,839.77 = 11,918.37/x
  3. Step 3: Cross multiply
    21,938.68x = 32,839.77 × 11,918.37
  4. Step 4: Simplify right side
    21,938.68x = 391,396,529.57
  5. Step 5: Solve for x
    x = 391,396,529.57/21,938.68
  6. Step 6: Final answer
    x = 17,840.48

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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.