Home / 28,181.97-38,891.70-17,428.41

Finding the Fourth Proportional to 28,181.97, 38,891.70 and 17,428.41

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Solution

The fourth proportional to 28,181.97, 38,891.70 and 17,428.41 is: 24,051.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.97 : 38,891.70 = 17,428.41 : x
  2. Step 2: Convert to fraction form
    28,181.97/38,891.70 = 17,428.41/x
  3. Step 3: Cross multiply
    28,181.97x = 38,891.70 × 17,428.41
  4. Step 4: Simplify right side
    28,181.97x = 677,820,493.20
  5. Step 5: Solve for x
    x = 677,820,493.20/28,181.97
  6. Step 6: Final answer
    x = 24,051.57

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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.