Home / 20,255.05-30,354.63-9,731.53

Finding the Fourth Proportional to 20,255.05, 30,354.63 and 9,731.53

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Solution

The fourth proportional to 20,255.05, 30,354.63 and 9,731.53 is: 14,583.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.05 : 30,354.63 = 9,731.53 : x
  2. Step 2: Convert to fraction form
    20,255.05/30,354.63 = 9,731.53/x
  3. Step 3: Cross multiply
    20,255.05x = 30,354.63 × 9,731.53
  4. Step 4: Simplify right side
    20,255.05x = 295,396,992.48
  5. Step 5: Solve for x
    x = 295,396,992.48/20,255.05
  6. Step 6: Final answer
    x = 14,583.87

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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.