Home / 20,348.30-30,542.18-9,825.75

Finding the Fourth Proportional to 20,348.30, 30,542.18 and 9,825.75

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Solution

The fourth proportional to 20,348.30, 30,542.18 and 9,825.75 is: 14,748.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.30 : 30,542.18 = 9,825.75 : x
  2. Step 2: Convert to fraction form
    20,348.30/30,542.18 = 9,825.75/x
  3. Step 3: Cross multiply
    20,348.30x = 30,542.18 × 9,825.75
  4. Step 4: Simplify right side
    20,348.30x = 300,099,776.01
  5. Step 5: Solve for x
    x = 300,099,776.01/20,348.30
  6. Step 6: Final answer
    x = 14,748.15

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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.