Home / 30,221.28-41,700.60-17,469.72

Finding the Fourth Proportional to 30,221.28, 41,700.60 and 17,469.72

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Solution

The fourth proportional to 30,221.28, 41,700.60 and 17,469.72 is: 24,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,221.28 : 41,700.60 = 17,469.72 : x
  2. Step 2: Convert to fraction form
    30,221.28/41,700.60 = 17,469.72/x
  3. Step 3: Cross multiply
    30,221.28x = 41,700.60 × 17,469.72
  4. Step 4: Simplify right side
    30,221.28x = 728,497,805.83
  5. Step 5: Solve for x
    x = 728,497,805.83/30,221.28
  6. Step 6: Final answer
    x = 24,105.46

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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.