Home / 28,665.82-39,577.56-18,622.88

Finding the Fourth Proportional to 28,665.82, 39,577.56 and 18,622.88

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Solution

The fourth proportional to 28,665.82, 39,577.56 and 18,622.88 is: 25,711.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,665.82 : 39,577.56 = 18,622.88 : x
  2. Step 2: Convert to fraction form
    28,665.82/39,577.56 = 18,622.88/x
  3. Step 3: Cross multiply
    28,665.82x = 39,577.56 × 18,622.88
  4. Step 4: Simplify right side
    28,665.82x = 737,048,136.02
  5. Step 5: Solve for x
    x = 737,048,136.02/28,665.82
  6. Step 6: Final answer
    x = 25,711.74

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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.