Home / 18,758.55-25,871.85-15,935.27

Finding the Fourth Proportional to 18,758.55, 25,871.85 and 15,935.27

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Solution

The fourth proportional to 18,758.55, 25,871.85 and 15,935.27 is: 21,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.55 : 25,871.85 = 15,935.27 : x
  2. Step 2: Convert to fraction form
    18,758.55/25,871.85 = 15,935.27/x
  3. Step 3: Cross multiply
    18,758.55x = 25,871.85 × 15,935.27
  4. Step 4: Simplify right side
    18,758.55x = 412,274,915.15
  5. Step 5: Solve for x
    x = 412,274,915.15/18,758.55
  6. Step 6: Final answer
    x = 21,977.97

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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.