Home / 21,383.68-32,194.36-18,526

Finding the Fourth Proportional to 21,383.68, 32,194.36 and 18,526

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Solution

The fourth proportional to 21,383.68, 32,194.36 and 18,526 is: 27,891.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.68 : 32,194.36 = 18,526 : x
  2. Step 2: Convert to fraction form
    21,383.68/32,194.36 = 18,526/x
  3. Step 3: Cross multiply
    21,383.68x = 32,194.36 × 18,526
  4. Step 4: Simplify right side
    21,383.68x = 596,432,713.36
  5. Step 5: Solve for x
    x = 596,432,713.36/21,383.68
  6. Step 6: Final answer
    x = 27,891.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.