Home / 28,591.38-39,458.72-16,658.56

Finding the Fourth Proportional to 28,591.38, 39,458.72 and 16,658.56

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Solution

The fourth proportional to 28,591.38, 39,458.72 and 16,658.56 is: 22,990.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591.38 : 39,458.72 = 16,658.56 : x
  2. Step 2: Convert to fraction form
    28,591.38/39,458.72 = 16,658.56/x
  3. Step 3: Cross multiply
    28,591.38x = 39,458.72 × 16,658.56
  4. Step 4: Simplify right side
    28,591.38x = 657,325,498.76
  5. Step 5: Solve for x
    x = 657,325,498.76/28,591.38
  6. Step 6: Final answer
    x = 22,990.34

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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.