Home / 28,820.22-39,771.82-16,073.40

Finding the Fourth Proportional to 28,820.22, 39,771.82 and 16,073.40

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Solution

The fourth proportional to 28,820.22, 39,771.82 and 16,073.40 is: 22,181.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.22 : 39,771.82 = 16,073.40 : x
  2. Step 2: Convert to fraction form
    28,820.22/39,771.82 = 16,073.40/x
  3. Step 3: Cross multiply
    28,820.22x = 39,771.82 × 16,073.40
  4. Step 4: Simplify right side
    28,820.22x = 639,268,371.59
  5. Step 5: Solve for x
    x = 639,268,371.59/28,820.22
  6. Step 6: Final answer
    x = 22,181.25

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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.