Home / 28,128.44-38,824.94-17,511.84

Finding the Fourth Proportional to 28,128.44, 38,824.94 and 17,511.84

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Solution

The fourth proportional to 28,128.44, 38,824.94 and 17,511.84 is: 24,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,128.44 : 38,824.94 = 17,511.84 : x
  2. Step 2: Convert to fraction form
    28,128.44/38,824.94 = 17,511.84/x
  3. Step 3: Cross multiply
    28,128.44x = 38,824.94 × 17,511.84
  4. Step 4: Simplify right side
    28,128.44x = 679,896,137.29
  5. Step 5: Solve for x
    x = 679,896,137.29/28,128.44
  6. Step 6: Final answer
    x = 24,171.13

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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.