Home / 28,577.80-39,447.30-16,645.96

Finding the Fourth Proportional to 28,577.80, 39,447.30 and 16,645.96

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Solution

The fourth proportional to 28,577.80, 39,447.30 and 16,645.96 is: 22,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.80 : 39,447.30 = 16,645.96 : x
  2. Step 2: Convert to fraction form
    28,577.80/39,447.30 = 16,645.96/x
  3. Step 3: Cross multiply
    28,577.80x = 39,447.30 × 16,645.96
  4. Step 4: Simplify right side
    28,577.80x = 656,638,177.91
  5. Step 5: Solve for x
    x = 656,638,177.91/28,577.80
  6. Step 6: Final answer
    x = 22,977.21

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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.