Home / 20,156.07-30,239.22-11,843.13

Finding the Fourth Proportional to 20,156.07, 30,239.22 and 11,843.13

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Solution

The fourth proportional to 20,156.07, 30,239.22 and 11,843.13 is: 17,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.07 : 30,239.22 = 11,843.13 : x
  2. Step 2: Convert to fraction form
    20,156.07/30,239.22 = 11,843.13/x
  3. Step 3: Cross multiply
    20,156.07x = 30,239.22 × 11,843.13
  4. Step 4: Simplify right side
    20,156.07x = 358,127,013.56
  5. Step 5: Solve for x
    x = 358,127,013.56/20,156.07
  6. Step 6: Final answer
    x = 17,767.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.