Home / 20,192.44-27,864.75-11,239.69

Finding the Fourth Proportional to 20,192.44, 27,864.75 and 11,239.69

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Solution

The fourth proportional to 20,192.44, 27,864.75 and 11,239.69 is: 15,510.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.44 : 27,864.75 = 11,239.69 : x
  2. Step 2: Convert to fraction form
    20,192.44/27,864.75 = 11,239.69/x
  3. Step 3: Cross multiply
    20,192.44x = 27,864.75 × 11,239.69
  4. Step 4: Simplify right side
    20,192.44x = 313,191,151.93
  5. Step 5: Solve for x
    x = 313,191,151.93/20,192.44
  6. Step 6: Final answer
    x = 15,510.32

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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.