Home / 25,178.82-34,735.10-20,150.12

Finding the Fourth Proportional to 25,178.82, 34,735.10 and 20,150.12

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Solution

The fourth proportional to 25,178.82, 34,735.10 and 20,150.12 is: 27,797.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,178.82 : 34,735.10 = 20,150.12 : x
  2. Step 2: Convert to fraction form
    25,178.82/34,735.10 = 20,150.12/x
  3. Step 3: Cross multiply
    25,178.82x = 34,735.10 × 20,150.12
  4. Step 4: Simplify right side
    25,178.82x = 699,916,158.79
  5. Step 5: Solve for x
    x = 699,916,158.79/25,178.82
  6. Step 6: Final answer
    x = 27,797.81

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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.