Home / 28,029.66-42,016.14-18,175.20

Finding the Fourth Proportional to 28,029.66, 42,016.14 and 18,175.20

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Solution

The fourth proportional to 28,029.66, 42,016.14 and 18,175.20 is: 27,244.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.66 : 42,016.14 = 18,175.20 : x
  2. Step 2: Convert to fraction form
    28,029.66/42,016.14 = 18,175.20/x
  3. Step 3: Cross multiply
    28,029.66x = 42,016.14 × 18,175.20
  4. Step 4: Simplify right side
    28,029.66x = 763,651,747.73
  5. Step 5: Solve for x
    x = 763,651,747.73/28,029.66
  6. Step 6: Final answer
    x = 27,244.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.