Home / 57,728.97-86,595.89-18,285.21

Finding the Fourth Proportional to 57,728.97, 86,595.89 and 18,285.21

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Solution

The fourth proportional to 57,728.97, 86,595.89 and 18,285.21 is: 27,428.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,728.97 : 86,595.89 = 18,285.21 : x
  2. Step 2: Convert to fraction form
    57,728.97/86,595.89 = 18,285.21/x
  3. Step 3: Cross multiply
    57,728.97x = 86,595.89 × 18,285.21
  4. Step 4: Simplify right side
    57,728.97x = 1,583,423,942.36
  5. Step 5: Solve for x
    x = 1,583,423,942.36/57,728.97
  6. Step 6: Final answer
    x = 27,428.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.