Home / 28,539.09-39,380.85-16,604.82

Finding the Fourth Proportional to 28,539.09, 39,380.85 and 16,604.82

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Solution

The fourth proportional to 28,539.09, 39,380.85 and 16,604.82 is: 22,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.09 : 39,380.85 = 16,604.82 : x
  2. Step 2: Convert to fraction form
    28,539.09/39,380.85 = 16,604.82/x
  3. Step 3: Cross multiply
    28,539.09x = 39,380.85 × 16,604.82
  4. Step 4: Simplify right side
    28,539.09x = 653,911,925.70
  5. Step 5: Solve for x
    x = 653,911,925.70/28,539.09
  6. Step 6: Final answer
    x = 22,912.85

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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.