Home / 20,239.88-27,933.46-11,856.38

Finding the Fourth Proportional to 20,239.88, 27,933.46 and 11,856.38

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Solution

The fourth proportional to 20,239.88, 27,933.46 and 11,856.38 is: 16,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.88 : 27,933.46 = 11,856.38 : x
  2. Step 2: Convert to fraction form
    20,239.88/27,933.46 = 11,856.38/x
  3. Step 3: Cross multiply
    20,239.88x = 27,933.46 × 11,856.38
  4. Step 4: Simplify right side
    20,239.88x = 331,189,547.17
  5. Step 5: Solve for x
    x = 331,189,547.17/20,239.88
  6. Step 6: Final answer
    x = 16,363.22

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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.