Home / 21,936.36-30,272.07-11,864.81

Finding the Fourth Proportional to 21,936.36, 30,272.07 and 11,864.81

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Solution

The fourth proportional to 21,936.36, 30,272.07 and 11,864.81 is: 16,373.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,936.36 : 30,272.07 = 11,864.81 : x
  2. Step 2: Convert to fraction form
    21,936.36/30,272.07 = 11,864.81/x
  3. Step 3: Cross multiply
    21,936.36x = 30,272.07 × 11,864.81
  4. Step 4: Simplify right side
    21,936.36x = 359,172,358.86
  5. Step 5: Solve for x
    x = 359,172,358.86/21,936.36
  6. Step 6: Final answer
    x = 16,373.38

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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.