Home / 57,982.38-86,988.95-18,540.22

Finding the Fourth Proportional to 57,982.38, 86,988.95 and 18,540.22

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Solution

The fourth proportional to 57,982.38, 86,988.95 and 18,540.22 is: 27,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,982.38 : 86,988.95 = 18,540.22 : x
  2. Step 2: Convert to fraction form
    57,982.38/86,988.95 = 18,540.22/x
  3. Step 3: Cross multiply
    57,982.38x = 86,988.95 × 18,540.22
  4. Step 4: Simplify right side
    57,982.38x = 1,612,794,270.57
  5. Step 5: Solve for x
    x = 1,612,794,270.57/57,982.38
  6. Step 6: Final answer
    x = 27,815.25

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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.