Home / 20,166.68-27,825.94-11,781.56

Finding the Fourth Proportional to 20,166.68, 27,825.94 and 11,781.56

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Solution

The fourth proportional to 20,166.68, 27,825.94 and 11,781.56 is: 16,256.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.68 : 27,825.94 = 11,781.56 : x
  2. Step 2: Convert to fraction form
    20,166.68/27,825.94 = 11,781.56/x
  3. Step 3: Cross multiply
    20,166.68x = 27,825.94 × 11,781.56
  4. Step 4: Simplify right side
    20,166.68x = 327,832,981.67
  5. Step 5: Solve for x
    x = 327,832,981.67/20,166.68
  6. Step 6: Final answer
    x = 16,256.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.