Home / 20,192.17-27,864.89-11,239.66

Finding the Fourth Proportional to 20,192.17, 27,864.89 and 11,239.66

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Solution

The fourth proportional to 20,192.17, 27,864.89 and 11,239.66 is: 15,510.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.17 : 27,864.89 = 11,239.66 : x
  2. Step 2: Convert to fraction form
    20,192.17/27,864.89 = 11,239.66/x
  3. Step 3: Cross multiply
    20,192.17x = 27,864.89 × 11,239.66
  4. Step 4: Simplify right side
    20,192.17x = 313,191,750.21
  5. Step 5: Solve for x
    x = 313,191,750.21/20,192.17
  6. Step 6: Final answer
    x = 15,510.56

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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.