Home / 28,396.17-39,179.50-18,966.56

Finding the Fourth Proportional to 28,396.17, 39,179.50 and 18,966.56

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Solution

The fourth proportional to 28,396.17, 39,179.50 and 18,966.56 is: 26,169.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,396.17 : 39,179.50 = 18,966.56 : x
  2. Step 2: Convert to fraction form
    28,396.17/39,179.50 = 18,966.56/x
  3. Step 3: Cross multiply
    28,396.17x = 39,179.50 × 18,966.56
  4. Step 4: Simplify right side
    28,396.17x = 743,100,094.21
  5. Step 5: Solve for x
    x = 743,100,094.21/28,396.17
  6. Step 6: Final answer
    x = 26,169.03

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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.