Home / 28,380.49-39,165.07-16,450.75

Finding the Fourth Proportional to 28,380.49, 39,165.07 and 16,450.75

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Solution

The fourth proportional to 28,380.49, 39,165.07 and 16,450.75 is: 22,702.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380.49 : 39,165.07 = 16,450.75 : x
  2. Step 2: Convert to fraction form
    28,380.49/39,165.07 = 16,450.75/x
  3. Step 3: Cross multiply
    28,380.49x = 39,165.07 × 16,450.75
  4. Step 4: Simplify right side
    28,380.49x = 644,294,593.67
  5. Step 5: Solve for x
    x = 644,294,593.67/28,380.49
  6. Step 6: Final answer
    x = 22,702.02

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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.