Home / 20,140.67-30,208.61-5,350.73

Finding the Fourth Proportional to 20,140.67, 30,208.61 and 5,350.73

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Solution

The fourth proportional to 20,140.67, 30,208.61 and 5,350.73 is: 8,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.67 : 30,208.61 = 5,350.73 : x
  2. Step 2: Convert to fraction form
    20,140.67/30,208.61 = 5,350.73/x
  3. Step 3: Cross multiply
    20,140.67x = 30,208.61 × 5,350.73
  4. Step 4: Simplify right side
    20,140.67x = 161,637,978.12
  5. Step 5: Solve for x
    x = 161,637,978.12/20,140.67
  6. Step 6: Final answer
    x = 8,025.45

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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.