Home / 20,896.84-28,837.82-11,336.68

Finding the Fourth Proportional to 20,896.84, 28,837.82 and 11,336.68

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Solution

The fourth proportional to 20,896.84, 28,837.82 and 11,336.68 is: 15,644.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.84 : 28,837.82 = 11,336.68 : x
  2. Step 2: Convert to fraction form
    20,896.84/28,837.82 = 11,336.68/x
  3. Step 3: Cross multiply
    20,896.84x = 28,837.82 × 11,336.68
  4. Step 4: Simplify right side
    20,896.84x = 326,925,039.41
  5. Step 5: Solve for x
    x = 326,925,039.41/20,896.84
  6. Step 6: Final answer
    x = 15,644.72

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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.