Home / 20,129.67-30,196.58-5,338.60

Finding the Fourth Proportional to 20,129.67, 30,196.58 and 5,338.60

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Solution

The fourth proportional to 20,129.67, 30,196.58 and 5,338.60 is: 8,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129.67 : 30,196.58 = 5,338.60 : x
  2. Step 2: Convert to fraction form
    20,129.67/30,196.58 = 5,338.60/x
  3. Step 3: Cross multiply
    20,129.67x = 30,196.58 × 5,338.60
  4. Step 4: Simplify right side
    20,129.67x = 161,207,359.80
  5. Step 5: Solve for x
    x = 161,207,359.80/20,129.67
  6. Step 6: Final answer
    x = 8,008.45

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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.