Home / 28,310.97-39,080.03-18,876.09

Finding the Fourth Proportional to 28,310.97, 39,080.03 and 18,876.09

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Solution

The fourth proportional to 28,310.97, 39,080.03 and 18,876.09 is: 26,056.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.97 : 39,080.03 = 18,876.09 : x
  2. Step 2: Convert to fraction form
    28,310.97/39,080.03 = 18,876.09/x
  3. Step 3: Cross multiply
    28,310.97x = 39,080.03 × 18,876.09
  4. Step 4: Simplify right side
    28,310.97x = 737,678,069.10
  5. Step 5: Solve for x
    x = 737,678,069.10/28,310.97
  6. Step 6: Final answer
    x = 26,056.26

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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.