Home / 20,507.18-30,760.74-11,735.88

Finding the Fourth Proportional to 20,507.18, 30,760.74 and 11,735.88

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Solution

The fourth proportional to 20,507.18, 30,760.74 and 11,735.88 is: 17,603.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507.18 : 30,760.74 = 11,735.88 : x
  2. Step 2: Convert to fraction form
    20,507.18/30,760.74 = 11,735.88/x
  3. Step 3: Cross multiply
    20,507.18x = 30,760.74 × 11,735.88
  4. Step 4: Simplify right side
    20,507.18x = 361,004,353.35
  5. Step 5: Solve for x
    x = 361,004,353.35/20,507.18
  6. Step 6: Final answer
    x = 17,603.81

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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.